TY  - BOOK
AU  - G S DHALIWAL & D S KLER
TI  - PRINCIPLES OF AGRICUTURAL ECOLOGY
U1  - 581.5 D 536 P 
PY  - 2003///
CY  - BOMBAY
PB  - Himalaya Publishing House
KW  - ECOLOGY
N1  - MORDEN BOOK HOUSE
ER  -