Clarke, C. C. (1936). Natural history of the Pacific crest trail system: A descriptive list of the typical species of the trees, animals, birds and flowers living in the High Mountains of Washington, Oregon and California. Pasadena, Calif.: [s.n.].
Chicago Style CitationClarke, Clinton C. Natural History of the Pacific Crest Trail System: A Descriptive List of the Typical Species of the Trees, Animals, Birds and Flowers Living in the High Mountains of Washington, Oregon and California. Pasadena, Calif.: [s.n.], 1936.
MLA CitationClarke, Clinton C. Natural History of the Pacific Crest Trail System: A Descriptive List of the Typical Species of the Trees, Animals, Birds and Flowers Living in the High Mountains of Washington, Oregon and California. Pasadena, Calif.: [s.n.], 1936.