APA (7th ed.) Citation

Dyni, J. R., & Gaskill, D. L. (1980). Relation of the carbon/oxygen ratio in coal to igneous intrusions in the Somerset coal field, Colorado: A study of the carbon-to-oxygen ratio in coals metamorphosed to higher than normal rank by igneous plutons. United States Department of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

Dyni, John R., and David L. Gaskill. Relation of the Carbon/oxygen Ratio in Coal to Igneous Intrusions in the Somerset Coal Field, Colorado: A Study of the Carbon-to-oxygen Ratio in Coals Metamorphosed to Higher than Normal Rank by Igneous Plutons. [Reston, Va.]: United States Department of the Interior, Geological Survey, 1980.

MLA (9th ed.) Citation

Dyni, John R., and David L. Gaskill. Relation of the Carbon/oxygen Ratio in Coal to Igneous Intrusions in the Somerset Coal Field, Colorado: A Study of the Carbon-to-oxygen Ratio in Coals Metamorphosed to Higher than Normal Rank by Igneous Plutons. United States Department of the Interior, Geological Survey, 1980.