Proceedings of a study week on the use of fertilizers and their effect on crop growth, with emphasis on quality and economy, April 10th-16th, 1972
(1974)
A Symposium on World food prod. by means of sust. agr. : the role of crop prot., held in collaboration wich the Centre for Res. on Sust. Agr. and Rural Dev. at the Fisherman's Cove Hotel, Madras, India 30 Nov. -2 Dec. 1992
(1993)