NATIONAL Symposium on "approach to higher productivity of crops " (Calcutta: 1978) Gupta, D.K.Das
Higher productivity in agriculture / 19-20- May 1978: Calcutta, edited by D.K.Das Gupta, N.C.Chattopadhyay - New Delhi Oxford & IBH publishing Co. 1980 - 178 p.
68584
631.5 / NAT
Higher productivity in agriculture / 19-20- May 1978: Calcutta, edited by D.K.Das Gupta, N.C.Chattopadhyay - New Delhi Oxford & IBH publishing Co. 1980 - 178 p.
68584
631.5 / NAT