Dr. Rajendra Prasad Central Agricultural University, Pusa Search for 'Provider:Iowa State college'

Economic and Technical Analysis of Fertilizer Innovations and Resource Use

By Baum, E. L.. USA The Iowa State College Press 1957 . 393

By Espe, Dwight. Ames The Iowa State College Press 1952 . 291

.- U.S.A : Iowa State College Press 1950 . viii,298p.

By Medici, Giuseppe.. .- U.S.A. : Iowa State College Press 1953 . x,254p.

By Loomis, WE. Iowa State college 1958