TY  - BOOK
AU  - Chatterjee,B.N
AU  - Maiti ,S
AU  - Mandal,B.K
TI  - Cropping System: Theory and Practice 
SN  - 812040419x
U1  - 631.58  19
PY  - 1989/// [Reprinred 1997]
CY  - New Delhi
PB  - Oxford & IBH
KW  -   Cropping systems
N1  - Includes Index
ER  -