TY  - BOOK
AU  - Sill, Webster H.,
TI  - Plant Protection Discipline : Problems and Possible Development Strategies
SN  - 0470264438
U1  - 632 
PY  - 1978///
CY  - New York
PB  - John Wiley & Sons, Inc.
KW  - Plant Diseases
KW  - Plant injuries, diseases & pests
ER  -