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The abbreviation “et al.” is typically used in bibliographies and other citations of the sources that a writer uses when writing a paper. It comes from the Latin phrase “et alia.” This Latin phrase means “and others.”
This abbreviation is typically used when citing a work that has more than one author. According to MLA guidelines, it is properly used when the work that is being cited has more than three authors. In such a case, one puts the last name of the first author, followed by “et al.”
It is important to note that it is proper to put a period after “al” to show that it is short for “alia.” However, “et” is a whole word and should not be followed by a period.
and others... or and all
You use it in a list (mainly authors), for example
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