Forest insect and disease conditions in the United States, 1989 /
technical Coordinators Thomas H. Hofacker, Robert C. Loomis, Richard F. Fowler.

APA Citation

United States. Forest Pest Management. (1990). Forest insect and disease conditions in the United States, 1989. Washington, D.C.: Forest Service, U.S. Dept. of Agriculture.

MLA Citation

United States. Forest Pest Management. Forest Insect And Disease Conditions In the United States, 1989. Washington, D.C.: Forest Service, U.S. Dept. of Agriculture, 1990.

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