How to ibid
Content on WhatAnswers is provided "as is" for informational purposes. While we strive for accuracy, we make no guarantees. Content is AI-assisted and should not be used as professional advice.
Last updated: April 4, 2026
Key Facts
- Ibid. is an abbreviation for the Latin word 'ibidem,' meaning 'in the same place.'
- It is primarily used in academic and legal writing.
- Ibid. is typically used when citing the same source consecutively.
- When referring to a different page within the same source, 'Ibid., p. [page number]' is used.
- Modern citation styles often prefer shorter author-date or numerical systems over Ibid.
What Does 'Ibid.' Mean?
The term 'Ibid.' is an abbreviation derived from the Latin word 'ibidem,' which translates to 'in the same place.' In academic writing, legal documents, and sometimes in historical texts, 'Ibid.' serves as a shorthand to refer to a source that was cited in the immediately preceding footnote or endnote. Its primary function is to prevent the cumbersome repetition of the full bibliographic information for a source that is being referenced consecutively.
When to Use 'Ibid.'
The use of 'Ibid.' is generally restricted to situations where a citation refers to the exact same source as the one mentioned in the note directly before it. For instance, if footnote 5 cites a book by Author A, and footnote 6 also needs to refer to the same book by Author A, footnote 6 can simply state 'Ibid.' If, however, footnote 6 needs to refer to a different page within that same book, the citation would be 'Ibid., p. 45,' indicating the same source but a different page number.
Historical Context and Evolution of Citation Styles
The practice of using 'Ibid.' and other Latin abbreviations like 'op. cit.' (in the work cited) and 'loc. cit.' (in the place cited) was once a common feature of scholarly citation. These abbreviations helped to save space and reduce the length of footnotes and endnotes, especially in the days of manual typesetting. However, with the advent of digital publishing and word processing software, many of these older conventions have become less prevalent.
Modern citation styles, such as the Chicago Manual of Style (which historically supported 'Ibid.'), the Modern Language Association (MLA) style, and the American Psychological Association (APA) style, have increasingly moved towards systems that aim for greater clarity and ease of use for the reader, especially in an online environment. Many styles now favor a shortened citation format in notes (e.g., Author Last Name, Short Title, Page Number) or a parenthetical author-date system within the text, which significantly reduces or eliminates the need for 'Ibid.'
Understanding Specific Citation Styles
While 'Ibid.' is still recognized and used in some contexts, particularly in legal citation (where it remains quite common) and by some scholars who adhere to older editions of style guides, it's crucial to know which citation style is required for your work. The Chicago Manual of Style, for example, still allows for the use of 'Ibid.' in its notes-bibliography system but recommends a more streamlined approach for other contexts. Legal citation systems, such as The Bluebook, heavily rely on 'Ibid.' and related abbreviations.
Alternatives to 'Ibid.'
In styles that discourage or prohibit 'Ibid.,' the standard practice is to use a shortened form of the citation. This typically includes the author's last name, a shortened version of the title (if necessary to distinguish it from other works by the same author), and the page number. For example, instead of 'Ibid., p. 78,' you might see 'Smith, The Great Novel, 78.' If the author has only written one work being cited, the author's last name and page number might suffice: 'Smith, 78.'
When Not to Use 'Ibid.'
You should avoid using 'Ibid.' if the preceding note cites a different source, even if it's by the same author or is part of the same larger work. 'Ibid.' strictly refers to the citation in the *immediately preceding* note. If there's any ambiguity, or if the citation style you are following does not permit its use, opt for a clear, shortened citation instead.
Conclusion
In summary, 'Ibid.' is a useful but increasingly specialized abbreviation for referring to an immediately preceding citation. While it remains relevant in certain academic and legal fields, understanding the specific requirements of your chosen citation style is paramount. Familiarizing yourself with alternatives and ensuring clarity in your references will help you produce well-documented and professional work.
More How To in Daily Life
Also in Daily Life
More "How To" Questions
Trending on WhatAnswers
Browse by Topic
Browse by Question Type
Sources
- Ibid. - WikipediaCC-BY-SA-4.0
- The Chicago Manual of Style Onlinefair-use
Missing an answer?
Suggest a question and we'll generate an answer for it.