APA (7th ed.) Citation

Halverson, N. M., Lesher, R., McClure, R. H., Riley, J., Topik, C., & Rodahorst, A. (1986). Major indicator shrubs and herbs on national forests of western Oregon and southwestern Washington. USDA, Forest Service, Pacific Northwest Region.

Chicago Style (17th ed.) Citation

Halverson, Nancy M., Robin Lesher, Richard H. McClure, Jim Riley, Christopher Topik, and Allan Rodahorst. Major Indicator Shrubs and Herbs on National Forests of Western Oregon and Southwestern Washington. [Portland, Or.?]: USDA, Forest Service, Pacific Northwest Region, 1986.

MLA (9th ed.) Citation

Halverson, Nancy M., et al. Major Indicator Shrubs and Herbs on National Forests of Western Oregon and Southwestern Washington. USDA, Forest Service, Pacific Northwest Region, 1986.