Gypsy moth :
forest influence /
by Robert W. Campbell.

APA Citation

Campbell, R. W., United States. Forest Service. (1979). Gypsy moth: forest influence. Washington, D.C.: U.S. Dept. of Agriculture, Forest Service.

MLA Citation

Campbell, Robert W, and United States. Forest Service. Gypsy Moth: Forest Influence. Washington, D.C.: U.S. Dept. of Agriculture, Forest Service, 1979.

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