Recognition of diseases and pests of farm crops (in colour)
Gram, E.
Recognition of diseases and pests of farm crops (in colour) by E. Gram, et. al. - London Blandford Press 1969 - 128 p.
Plant Diseases
Crops
Pests
632.633 / G 745 R
Recognition of diseases and pests of farm crops (in colour) by E. Gram, et. al. - London Blandford Press 1969 - 128 p.
Plant Diseases
Crops
Pests
632.633 / G 745 R