Spruce budworms handbook : predators of the spruce budworm.

Bibliographic Details
Corporate Authors:	United States. Cooperative State Research Service, Canada/United States Spruce Budworms Program
Format:	Government Document Book
Language:	English
Published:	[Washington, D.C.?] : U.S. Dept. of Agriculture, Forest Service, Cooperative State Research Service, [1985]
Series:	Agriculture handbook (United States. Department of Agriculture) ; no. 644.
Subjects:	Spruce budworm > Control > United States. Western spruce budworm > Control > United States. Predation (Biology)

Evans: US Documents (Annex 5th floor)