How to et al
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
- Et al. is an abbreviation for the Latin phrase 'et alia'.
- 'Et alia' translates to 'and others' in English.
- It is primarily used in academic writing and legal documents.
- The purpose is to shorten citations with multiple authors.
- Typically, it's used when there are more than two or three authors listed.
What does 'et al.' mean?
The abbreviation 'et al.' is a widely used shorthand in academic, legal, and bibliographic contexts. It originates from the Latin phrase et alia, which directly translates to 'and others.' In practice, it serves as a concise way to refer to a group of individuals when the full list of names would be excessively long or cumbersome. The most common application is in citing sources that have multiple authors.
When and why is 'et al.' used?
The primary function of 'et al.' is to streamline citations and bibliographies. When a research paper, book, or article has several authors, listing all of them can take up significant space and make the reference list difficult to read. Using 'et al.' allows for a shorter, more manageable citation while still acknowledging that the work is not solely the product of the named author(s).
Rules for Usage:
The specific rules for when to use 'et al.' can vary slightly depending on the citation style guide being followed (e.g., APA, MLA, Chicago). However, general guidelines are as follows:
- Number of Authors: Many styles recommend using 'et al.' when the number of authors exceeds a certain threshold, often two or three. For example, APA style (7th edition) suggests using 'et al.' for sources with three or more authors in the text and for sources with 21 or more authors in the reference list. MLA style typically uses 'et al.' for works with three or more authors.
- In-text Citations: When citing a source with multiple authors within the text of your writing, you would typically list the first author's last name followed by 'et al.' and the year of publication (if applicable to the style guide). For example: (Smith et al., 2023).
- Bibliographies/Reference Lists: The usage in bibliographies or reference lists can differ. Some styles may list all authors up to a certain number, then use 'et al.', while others might use 'et al.' more broadly in the reference list itself for works with a large number of authors. Always consult the specific style guide required for your work.
- Legal Citations: In legal writing, 'et al.' can be used to refer to multiple parties in a case, such as 'Jones et al. v. Smith.'
Common Misconceptions:
It's important to note that 'et al.' is not a substitute for listing all authors when that is required or appropriate. For instance, in the initial submission of a manuscript or in a formal dedication, all authors might still be credited. Additionally, 'et al.' should not be used to refer to a group of people who are not co-authors of a work; it specifically denotes joint authorship or contribution.
The correct punctuation involves placing a period after 'et' because it is an abbreviation. The 'al.' also includes a period because it is an abbreviation for 'alia'. Thus, the correct form is 'et al.'.
Understanding the proper use of 'et al.' is crucial for academic integrity and clear communication, ensuring that credit is appropriately attributed while maintaining conciseness in scholarly and professional documents.
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
- Et al. - WikipediaCC-BY-SA-4.0
- Et al. - APA Dictionary of Psychologyfair-use
- When to use et al. - The Chicago Manual of Stylefair-use
Missing an answer?
Suggest a question and we'll generate an answer for it.