Spruce budworms handbook :
silvicultural strategies to reduce stand and forest susceptibility to the western spruce budworm /
[Clinton E. Carlson and N. William Wulf].

APA Citation

Carlson, C. E., Wulf, N. William. (1989). Spruce budworms handbook: silvicultural strategies to reduce stand and forest susceptibility to the western spruce budworm. [Washington, D.C.?]: U.S. Dept. of Agriculture, Forest Service .

MLA Citation

Carlson, Clinton E, and N. William Wulf. Spruce Budworms Handbook: Silvicultural Strategies to Reduce Stand And Forest Susceptibility to the Western Spruce Budworm. [Washington, D.C.?]: U.S. Dept. of Agriculture, Forest Service , 1989.

Warning: These citations may not always be complete (especially for serials).