TY  - BOOK
T1  - The optimun qualifications for apprenticeship in certain allied trades
A1  - Oot, Benjamin Henry Van
PP  - New York
PB  - Columbia University
YR  - 1932
UL  - http://vufind10-pruebas.sigbunlp.bibliotecas.unlp.edu.ar/Record/dun.49868
OP  - 36
NO  - Don. Univ. Columbia
ER  -