APA (7th ed.) Citation

Hartley, R. J. (1992). Rock art on the northern Colorado plateau: Variability in content and context. Avebury.

Chicago Style (17th ed.) Citation

Hartley, Ralph J. Rock Art on the Northern Colorado Plateau: Variability in Content and Context. Aldershot [etc.]: Avebury, 1992.

MLA (9th ed.) Citation

Hartley, Ralph J. Rock Art on the Northern Colorado Plateau: Variability in Content and Context. Avebury, 1992.