Petersen, R. G., & Wells, J. D. (1961). Preliminary geologic map of the Emmett Wash NW quadrangle, Coconino County, Arizona. The Survey.
Chicago Style (17th ed.) CitationPetersen, Richard G., and John D. Wells. Preliminary Geologic Map of the Emmett Wash NW Quadrangle, Coconino County, Arizona. Washington, D.C.: The Survey, 1961.
MLA (9th ed.) CitationPetersen, Richard G., and John D. Wells. Preliminary Geologic Map of the Emmett Wash NW Quadrangle, Coconino County, Arizona. The Survey, 1961.
Warning: These citations may not always be 100% accurate.