APA (7th ed.) Citation

Mudge,Isadore Gilbert. (1936). Guide to reference books (6th ed.). American Library Association.

Chicago Style (17th ed.) Citation

Mudge,Isadore Gilbert. Guide to Reference Books. 6th ed. Chicago: American Library Association, 1936.

MLA (9th ed.) Citation

Mudge,Isadore Gilbert. Guide to Reference Books. 6th ed. American Library Association, 1936.

Warning: These citations may not always be 100% accurate.