TY  - BOOK
AU  - Sheaffer, C. C.
ED  - Moncada, K. M. 
TI  - Introduction to Agronomy : Food, Crops, and Environment
SN  - 9788131526675
U1  - 630  
PY  - 2012///
CY  - Delmar
PB  - Cengage Learning
ER  -