TY  - BOOK
AU  - Sheafer, Crig C : Monicada,Kristine M
TI  - Introduction to Agronomy: Food ,crops and environment
SN  - 978-1-1113-1233-6
U1  - 630 SHE 2012 
PY  - 2012///
CY  - USA 
PB  - ; Delmar Cengage learning
KW  - Food production
N1  - Appendix
index
ER  -