Ecological agriculture : towards sustainable development; proceedings
International Conference on Ecological Agriculture: towards.
Ecological agriculture : towards sustainable development; proceedings - Ludhiana Indian Ecological Society 1997 - 24cm. 267
AGRICULTURAL ECOLOGY -- CONGRESSES
AGRICULTURAL ECOLOGY -- CONGRESSES AGRICULTURE -- ECONOMIC ASPECTS -- CONGRESSE
630.274.5 I-5E
Ecological agriculture : towards sustainable development; proceedings - Ludhiana Indian Ecological Society 1997 - 24cm. 267
AGRICULTURAL ECOLOGY -- CONGRESSES
AGRICULTURAL ECOLOGY -- CONGRESSES AGRICULTURE -- ECONOMIC ASPECTS -- CONGRESSE
630.274.5 I-5E