TY  - BOOK
AU  - Walker, John Charles
TI  - Plant Pathology Mcgrawhill Publications In The A S
U1  - 571.92 
PY  - 1950///
CY  - Newyork
PB  - Mcgraw Hill
KW  - General Stack
KW  - Life Sciences
KW  - BiologyPhysiologyPathology
KW  - Botany
ER  -