Winchell, C. M., & Mudge, I. G. (1951). Guide to reference books (7th ed., based on the Guide to reference books, 6th ed., by Isadore Gilbert Mudge.). American Library Assn..
Citação norma ChicagoWinchell, Constance M., and Isadore Gilbert Mudge. Guide to Reference Books. 7th ed., based on the Guide to reference books, 6th ed., by Isadore Gilbert Mudge. Chicago: American Library Assn., 1951.
Citação norma MLAWinchell, Constance M., and Isadore Gilbert Mudge. Guide to Reference Books. 7th ed., based on the Guide to reference books, 6th ed., by Isadore Gilbert Mudge. American Library Assn., 1951.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.