TY  - BOOK
AU  - DHALIWAL, G.S
TI  - Ecological agricultural and Sustainable development: proceedings
U1  - 630.274 5 I-5E 
PY  - 1997///
CY  - Ludhiana
PB  - Indian Ecological Society
KW  - AGRICULTURAL ECOLOGY -- CONGRESSES
KW  - AGRICULTURE -- ECONOMIC ASPECTS -- CONGRESS
ER  -