Holderness, M Ritchie, B.J Waller, J.M
Plant clinic handbook - U K, C.A.B. International 1988 - 94 - IMI Technical Handbook No.3 .
Plant clinic -hand book/ Plant disease- diagnosis/
632 WAL
100
Plant clinic handbook - U K, C.A.B. International 1988 - 94 - IMI Technical Handbook No.3 .
Plant clinic -hand book/ Plant disease- diagnosis/
632 WAL
100