APA (7th ed.) Citation

Armbrustmacher, T. J. (1980). Abundance and distribution of thorium in the carbonatite stock at Iron Hill, Powderhorn District, Gunnison County, Colorado. United States Department of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

Armbrustmacher, Theodore J. Abundance and Distribution of Thorium in the Carbonatite Stock at Iron Hill, Powderhorn District, Gunnison County, Colorado. Washington: United States Department of the Interior, Geological Survey, 1980.

MLA (9th ed.) Citation

Armbrustmacher, Theodore J. Abundance and Distribution of Thorium in the Carbonatite Stock at Iron Hill, Powderhorn District, Gunnison County, Colorado. United States Department of the Interior, Geological Survey, 1980.