SRIVASTAVA, P. C. Gupta, U. C. Trace elements in crop production / [by] P. C.Srivastava, U. C.Gupta - New Delhi Oxford & IBH pub. 1996 - vii, 356 p. Includes appendixes, bibliography & index. ISBN: 8120410858 Subjects--Topical Terms: Trace elementsMicro nutrients Dewey Class. No.: 572.515 / SRI