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Published 2008
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by Petersen, David, 1946-
Published 1997 -
Wildlife and plants of the Cascadescovering most of the common wildlife and plants of the Pacific Northwest and the area of the lava bedsBookby Yocom, Charles, 1914-1985
Published 1971 -
by Haig-Brown, Roderick, 1908-1976
Published 1961