Guide to reference books.
APA Citation
Mudge, I. Gilbert., Winchell, C. M. (Constance Mabel)., Reed, D. Mary., American Library Association. (1929). Guide to reference books. 5th ed. Chicago: American library association.
MLA Citation
Mudge, Isadore Gilbert, 1875-1957, Constance M. (Constance Mabel) Winchell, Doris Mary Reed, and American Library Association. Guide to Reference Books. 5th ed. Chicago: American library association, 1929.
Warning: These citations may not always be complete (especially for serials).