Cita APA

Fay, R. O., & Fay, R. O. (1978). Geologic map and sections of Custer County, Oklahoma. [Oklahoma]: Oklahoma Geological Survey.

Citación estilo Chicago

Fay, Robert O., y Robert O. Fay. Geologic Map and Sections of Custer County, Oklahoma. [Oklahoma]: Oklahoma Geological Survey, 1978.

Cita MLA

Fay, Robert O., y Robert O. Fay. Geologic Map and Sections of Custer County, Oklahoma. [Oklahoma]: Oklahoma Geological Survey, 1978.