Sustainable agriculture : issues, perspectives and prospects in semi arid tropics: proceedings
International Symposium on Natural Resources Management for
Sustainable agriculture : issues, perspectives and prospects in semi arid tropics: proceedings - New Delhi Indian Society of agronomy 1990 - 28cm. 2v.
AGRICULTURE -- ARID REGIONS -- CONGRESSES
AGRICULTURE -- ARID REGIONS -- CONGRESSES
630.915.4 I-5 S
Sustainable agriculture : issues, perspectives and prospects in semi arid tropics: proceedings - New Delhi Indian Society of agronomy 1990 - 28cm. 2v.
AGRICULTURE -- ARID REGIONS -- CONGRESSES
AGRICULTURE -- ARID REGIONS -- CONGRESSES
630.915.4 I-5 S