Ecological agriculture and sustainable development : proceedings
International Conference, Chandigarh, India, Nov. 15-17, 199
Ecological agriculture and sustainable development : proceedings - Ludhiana Indian Ecological Society 1998 - 25cm. 2v.
AGRICULTURAL ECOLOGY -- CONGRESSES
AGRICULTURAL ECOLOGY -- CONGRESSES AGRICULTURE -- ECONOMIC ASPECTS -- CONGRESSE
FORST 630.274.5 I-5E
Ecological agriculture and sustainable development : proceedings - Ludhiana Indian Ecological Society 1998 - 25cm. 2v.
AGRICULTURAL ECOLOGY -- CONGRESSES
AGRICULTURAL ECOLOGY -- CONGRESSES AGRICULTURE -- ECONOMIC ASPECTS -- CONGRESSE
FORST 630.274.5 I-5E