APA (7th ed.) Citation

Mudge, I. G., & Winchell, C. M. (1936). Guide to reference books (6th ed.). American library association.

Chicago Style (17th ed.) Citation

Mudge, Isadore Gilbert, and Constance M. Winchell. Guide to Reference Books. 6th ed. Chicago: American library association, 1936.

MLA (9th ed.) Citation

Mudge, Isadore Gilbert, and Constance M. Winchell. Guide to Reference Books. 6th ed. American library association, 1936.