Forest spraying and some effects of DDT.

Bibliographic Details
Corporate Author:	Ontario. Department of Lands and Forests
Format:	Book
Language:	English
Published:	[Toronto] : Dept. of Lands and Forests, Division of Research, 1949.
Series:	Biological bulletin ; no. 2
Subjects:	DDT (Insecticide) Spruce bud-worm. Spraying.

Description
Physical Description:	174 pages : illustrations (some color), maps ; 24 cm.
Bibliography:	Bibliography: page 174.