TY  - BOOK
AU  - Walker John Charles
TI  - Diseases of vegetable crops
T2  - McGraw Hill publication in the agricultural sciences
U1  - J93:4, J2;1 
PY  - 1952///
CY  - New York    
PB  -  McGraw Hill       
KW  -  Vegetable crops
KW  - Agriculture
ER  -