TY  - BOOK
AU  - Gram,Ernst
AU  - Bovien,Prosper
AU  - Stapel,Chr
TI  - Recognition of diseases and pests of farm crops
U1  - 632 
PY  - 1958///
CY  - Cambridge
PB  - Danis Agricultural Information and Advisory Aids Service
KW  - Plant diseases
KW  - Crop lossess
KW  - Vegetables
KW  - Diseases and pests
KW  - Grain
KW  - Field crops
KW  - diseases and pest resistance
KW  - Europe
N1  - Text in English Spanish and French
ER  -