TY  - BOOK
AU  - Marini-Bettolo, G B.
TI  - Natural products and the protection of plants
SN  - 044441620X
U1  - 632.96/MAR 
PY  - 1977///
CY  - Amsterdam
PB  - Elsevier Scientific Publishing Company
KW  - Natural products
KW  - Organic farming
ER  -