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APA Citation Edition CitationHartley, R. J. (1992). Rock art on the northern Colorado Plateau: Variability in content and context. Avebury.
Chicago Citation Edition CitationHartley, Ralph J. Rock Art on the Northern Colorado Plateau: Variability in Content and Context. Aldershot: Avebury, 1992.
MLA Citation Edition CitationHartley, Ralph J. Rock Art on the Northern Colorado Plateau: Variability in Content and Context. Avebury, 1992.