APA
(1990). Sustainable agriculture: Issues, perspectives and prospects in semi arid tropics: Proceedings of the first international symposium on Natural resources management for a sustainable agriculture. Feb 1990, Delhi. V 1. Delhi: ISA.
Chicago
1990. Sustainable agriculture: Issues, perspectives and prospects in semi arid tropics: Proceedings of the first international symposium on Natural resources management for a sustainable agriculture. Feb 1990, Delhi. V 1. Delhi: ISA.
Harvard
(1990). Sustainable agriculture: Issues, perspectives and prospects in semi arid tropics: Proceedings of the first international symposium on Natural resources management for a sustainable agriculture. Feb 1990, Delhi. V 1. Delhi: ISA.
MLA
Sustainable agriculture: Issues, perspectives and prospects in semi arid tropics: Proceedings of the first international symposium on Natural resources management for a sustainable agriculture. Feb 1990, Delhi. V 1. Delhi: ISA. 1990.