TY  - BOOK
AU  - Winchell,Constance Mabel
TI  - Guide to reference books
PY  - 1951///
CY  - Chicago : 
PB  - American Library Association, 
N1  - Texto y tercer suplemento, 1956-1958. Basado en Guide to reference books, 6a ed., de Isadore Gilbert Mudge
ER  -