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How to Cite an Online Encyclopedia in APA Format

Updated July 20, 2017

In-Text Citation

A parenthetical citation should use the format ("Entry Name," date) when a publication date is available, or ("Entry Name," n.d.) if no date is present. A signal phrase should follow the same guidelines.

A parenthetical citation example: The bush elephant is also known as the African savanna ("Elephant," n.d.).

A signal phrase example: According to the Encyclopædia Britannica's "Elephant" entry (n.d.), the bush elephant is also known as the African savanna.

Reference List

In the reference list, begin the encyclopedia listing with the entry name. If a publication date is not available, use "n.d.".

For example:

Elephant. (n.d.). In Encyclopædia Britannica online (in italics). Retrieved from http://www.britannica.com/EBchecked/topic/184366/elephant

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About the Author

Marcie Thomas has a Master of Education in instructional technology. She specializes in the use of technology in higher education, including online learning. Thomas has experience with instructional design, Web development, network administration, PC support and technical writing.