TY  - BOOK
AU  - Graffin, Ph..
TI  - Integrated Crop Protection: Proceedings of a Symposium Held at Valence / 
SN  - 90-6191-229-6
U1  - Jp53,N80 
PY  - 1982///
CY  - Netherlands : 
PB  - A.A. Balkema , 
KW  - Agriculture <Crop>
ER  -