TY  - BOOK
AU  - Palaniappan S P
AU  - Palaniappan S P
AU  - Sivaraman K
TI  - Croping Systems in the tropics principles and management
U1  - 631.58 
PY  - 2006///
CY  - New delhi
PB  - New Age Internation (P) Ltd., Publishers
ER  -