APA (7th ed.) Citation

Donnell, J. R., Cashion, W. B., & Brown, J. H. (1953). Geology of the Cathedral Bluffs oil-shale area, Rio Blanco and Garfield Counties, Colorado. Interior--Geological Survey.

Chicago Style (17th ed.) Citation

Donnell, John R., W. B. Cashion, and James H. Brown. Geology of the Cathedral Bluffs Oil-shale Area, Rio Blanco and Garfield Counties, Colorado. Washington: Interior--Geological Survey, 1953.

MLA (8th ed.) Citation

Donnell, John R., et al. Geology of the Cathedral Bluffs Oil-shale Area, Rio Blanco and Garfield Counties, Colorado. Interior--Geological Survey, 1953.