TY  - BOOK
AU  - Helyer, Neil and others,
TI  - Color Handbook of Biological Control in Plant Protection
SN  - 0881925993
U1  - 632 
PY  - 2003///
CY  - Portland
PB  - Timber Press
KW  - Biopesticides
KW  - Plant injuries, diseases & pests
KW  - Plant Protection
ER  -