TY  - BOOK
AU  - Smith,C.Wayne
TI  - Crop production: evolution, history, and technology 
SN  - 0471079723
U1  - 633.00973 
PY  - 1995///
CY  - New York
PB  - John Wiley, 
KW  - CULTIVOS
KW  - ESTADOS UNIDOS
ER  -