APA (7th ed.) Citation

Risley, R. (1983). Sedimentation and stratigraphy of the lower Cretaceous, Amole Arkose, Tucson Mountains, Arizona. [Bureau of Geology and Mineral Technology?].

Chicago Style (17th ed.) Citation

Risley, Rob. Sedimentation and Stratigraphy of the Lower Cretaceous, Amole Arkose, Tucson Mountains, Arizona. [Tucson, Ariz.?]: [Bureau of Geology and Mineral Technology?], 1983.

MLA (9th ed.) Citation

Risley, Rob. Sedimentation and Stratigraphy of the Lower Cretaceous, Amole Arkose, Tucson Mountains, Arizona. [Bureau of Geology and Mineral Technology?], 1983.