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APA Citation Edition CitationCressman, L. S., & Back, R. H. (1936). Archaeological survey of the Guano valley region in southeastern Oregon. University of Oregon.
Chicago Citation Edition CitationCressman, Luther Sheeleigh, und Roscius H. Back. Archaeological Survey of the Guano Valley Region in Southeastern Oregon. Eugene, Or.: University of Oregon, 1936.
MLA Citation Edition CitationCressman, Luther Sheeleigh, und Roscius H. Back. Archaeological Survey of the Guano Valley Region in Southeastern Oregon. University of Oregon, 1936.