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APA 7 Referencing

Dictionary: Print


(Weller, 2009)

Weller, B. F. (Ed.). (2009). Bailliere's nurses dictionary:  For nurses and health care workers (25th ed.). Elsevier.

(APA manual, 2020, p. 324).

Dictionary or encyclopedia: Online

When the work is being regularly updated (unstable), use n.d. as the publication date and include the retrieval date.

If the work is stable, omit the retrieval date.

Unstable example:

(Merriam-Webster, n.d.).

Merriam-Webster. (n.d.). dictionary. Retrieved May 5, 2019, from https://www.merriam-



Stable example:

Note: Include the source of the material

(Salta, 2019).

Salta, E. N. (Ed.). (2019). The Stanford encyclopedia of philosophy (Summer 2019 ed.). Stanford University.


(APA manual, 2020, p. 324).