TY  - BOOK
AU  -  Palaniappan, SP.
AU  -  Sivaraman, K. 
TI  - Cropping systems in the tropics: Principles and management 
SN  - 812240667X
U1  - 631.582 22
PY  - 1996///
CY  - New delhi
PB  - New age international
KW  - Cropping systems
N1  - Includes index
ER  -