APA (7th ed.) Zitazioa

Sheehy, E. P. (1986). Guide to reference books (10th ed.). American Library Association.

Chicago Style (17th ed.) Zitazioa

Sheehy, Eugene Paul. Guide to Reference Books. 10th ed. Chicago: American Library Association, 1986.

MLA (9th ed.) Zitazioa

Sheehy, Eugene Paul. Guide to Reference Books. 10th ed. American Library Association, 1986.