TY  - SER
AU  - 
TI  - Plant Pathology Vol. 22(1-4)
SN  - 117225312
SN  - 0-11-7225
U1  - 571.92 
PY  - 1973///
CY  - London
PB  - Her Majestys Stationary Office
KW  - Plant Pathology
ER  -