APA (7th ed.) Citation

Crawford, R. D. (1910). A preliminary report on the geology of the Monarch mining district, Chaffee County, Colorado. Colorado State Geological Survey.

Chicago Style (17th ed.) Citation

Crawford, Ralph Dixon. A Preliminary Report on the Geology of the Monarch Mining District, Chaffee County, Colorado. Boulder: Colorado State Geological Survey, 1910.

MLA (8th ed.) Citation

Crawford, Ralph Dixon. A Preliminary Report on the Geology of the Monarch Mining District, Chaffee County, Colorado. Colorado State Geological Survey, 1910.