Johansen, Dorothy O. Empire of the Columbia : A History of the Pacific Northwest [Text] Dorothy O. Johansen and Charles M.Gates - New York Harper & Brothers Publishers 1957 - 685 p. Including index ; Hb ISBN: 0.00 LCCN: 031470 Subjects--Topical Terms: History, general -- United States Dewey Class. No.: 973 / J65E