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by Stell, G.; Alford, D. V.; British Crop Protection Council.; Upstone, M. E.;
Year: 1980., Callno: 632:634 ALF
Book
by Morgan, W. M.; Ledieu, Michael S.; Stell, G.; British Crop Protection Council.;
Year: 1979., Callno: 632:631.344 MOR
Book