APA (7th ed.) Citation

Kroeger, A. B., & Mudge, I. G. (1917). Guide to the study and use of reference books (3d ed.). American Library Association.

Chicago Style (17th ed.) Citation

Kroeger, Alice Bertha, and Isadore Gilbert Mudge. Guide to the Study and Use of Reference Books. 3d ed. Chicago: American Library Association, 1917.

MLA (9th ed.) Citation

Kroeger, Alice Bertha, and Isadore Gilbert Mudge. Guide to the Study and Use of Reference Books. 3d ed. American Library Association, 1917.