APA (7th ed.) Citation

Pacific Northwest Research Station (Portland, Or.), & United States. Forest Service. Spring Creek: Great gray owl : management area. U.S. Dept. of Agriculture, Forest Service, [1993].

Chicago Style (17th ed.) Citation

Pacific Northwest Research Station (Portland, Or.), and United States. Forest Service. Spring Creek: Great Gray Owl : Management Area. [Portland, Or.] (P.O. Box 3890, Portland 97208): U.S. Dept. of Agriculture, Forest Service, [1993].

MLA (9th ed.) Citation

Pacific Northwest Research Station (Portland, Or.), and United States. Forest Service. Spring Creek: Great Gray Owl : Management Area. U.S. Dept. of Agriculture, Forest Service, [1993].