The Sierra Club guide to the natural areas of Oregon and Washington - Perry, John, 1914-; Perry, Jane Greverus; Sierra Club. (San Francisco : Sierra Club Books, 1983)
Includes bibliographical references and index.
Keywords: Outdoor recreation -- Washington (State) -- Guidebooks; Natural history -- Washington (State); Natural areas -- Washington (State) -- Guidebooks; Outdoor recreation -- Oregon -- Guidebooks; Natural history -- Oregon; Natural areas -- Oregon -- Guidebooks; Washington (State) -- Guidebooks; Oregon -- Guidebooks