TY  - BOOK
AU  - Da Silva,Zenia Sacks
TI  - On with Spanish: a concept approach 
U1  - 465 
PY  - 1970///
CY  - New York
PB  - Harper & Row
KW  - Spanish language
KW  - Textbooks for foreign speakers
KW  - English
N1  - Text in English and Spanish; Translation from the Spanish
ER  -