APA (7th ed.) Citation

Sheehy, E. P. (1968). Guide to reference books (8th ed.). American Library Association.

Chicago Style (17th ed.) Citation

Sheehy, Eugene P. Guide to Reference Books. 8th ed. Chicago: American Library Association, 1968.

MLA (9th ed.) Citation

Sheehy, Eugene P. Guide to Reference Books. 8th ed. American Library Association, 1968.