APA (7th ed.) Citation

Shomaker, J. W., Beaumont, E. C., & Kottlowski, F. E. (1971). Strippable low-sulfur coal resources of the San Juan Basin in New Mexico and Colorado. State Bureau of Mines and Mineral Resources.

Chicago Style (17th ed.) Citation

Shomaker, John W., Edward C. Beaumont, and Frank Edward Kottlowski. Strippable Low-sulfur Coal Resources of the San Juan Basin in New Mexico and Colorado. Socorro, N.M.: State Bureau of Mines and Mineral Resources, 1971.

MLA (9th ed.) Citation

Shomaker, John W., et al. Strippable Low-sulfur Coal Resources of the San Juan Basin in New Mexico and Colorado. State Bureau of Mines and Mineral Resources, 1971.