Ecology and management of the spotted owl in the Pacific Northwest [electronic resource] : Arcata, California, June 19-23, 1984 / Ralph J. Gutierrez and Andrew B. Carey, technical editors ; sponsored by Cooper Ornithological Society ... [et al.].
Imprint
Portland, Or. : U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station, [1985]