APA (7th ed.) Citation

Encyclopaedia Britannica, Inc, & Adler, M. J. (1990). Great books of the western world (2nd ed.). Encyclopedia Britannica.

Chicago Style (17th ed.) Citation

Encyclopaedia Britannica, Inc, and Mortimer Jerome Adler. Great Books of the Western World. 2nd ed. Chicago: Encyclopedia Britannica, 1990.

MLA (9th ed.) Citation

Encyclopaedia Britannica, Inc, and Mortimer Jerome Adler. Great Books of the Western World. 2nd ed. Encyclopedia Britannica, 1990.