TY  - BOOK
ED  - Canada. Department of Lands and Forests
TI  - Forest spraying and some effects of DDT
T2  - Division of research biological bulletin
U1  - 632.95 
PY  - 1949///
CY  - Ontario
PB  - The Departmnet
KW  - DDT (Insecticida)
KW  - Insecticidas
KW  - Toxicidad
ER  -