TY  - BOOK
AU  - Gram, Ernst
AU  - Bovien, Prosper
AU  - Stapel, Chr
TI  - Recognition and control of pests and diseases of farm crops
SN  - 0713709952
PY  - 1969///
CY  - Dorset: 
PB  - Blandford press, 
KW  - Agriculture
KW  - Pests
KW  - Farm crops
ER  -