TY  - BOOK
T1  - Efficiency : Its Spiritual Source
A1  - Tapper, Thomas
PP  - New York
PB  - Platt & Peck Co.
YR  - 1911
UL  - http://vufind10-pruebas.sigbunlp.bibliotecas.unlp.edu.ar/Record/dun.63018
OP  - 107
NO  - Don. J. J. Corti
ER  -