United States. Forest Service & National Forest System (U.S.). (1991). Draft environmental impact statement on management for the northern spotted owl in the national forests: States of Washington, Oregon and California. U.S. Dept. of Agriculture, Forest Service, National Forest System.
Chicago Style (17th ed.) CitationUnited States. Forest Service and National Forest System (U.S.). Draft Environmental Impact Statement on Management for the Northern Spotted Owl in the National Forests: States of Washington, Oregon and California. [Portland, Or.?]: U.S. Dept. of Agriculture, Forest Service, National Forest System, 1991.
MLA (9th ed.) CitationUnited States. Forest Service and National Forest System (U.S.). Draft Environmental Impact Statement on Management for the Northern Spotted Owl in the National Forests: States of Washington, Oregon and California. U.S. Dept. of Agriculture, Forest Service, National Forest System, 1991.