APA (7th ed.) Citation

Barnum, B. E., & Garrigues, R. S. (1980). Geologic map and coal sections of the Cactus Reservoir quadrangle, Rio Blanco and Moffat Counties, Colorado. The Survey.

Chicago Style (17th ed.) Citation

Barnum, Bruce E., and Robert S. Garrigues. Geologic Map and Coal Sections of the Cactus Reservoir Quadrangle, Rio Blanco and Moffat Counties, Colorado. Reston, Va.: The Survey, 1980.

MLA (9th ed.) Citation

Barnum, Bruce E., and Robert S. Garrigues. Geologic Map and Coal Sections of the Cactus Reservoir Quadrangle, Rio Blanco and Moffat Counties, Colorado. The Survey, 1980.