APA (7th ed.) Citation

George, R. D. (1927). Geology and natural resources of Colorado. University of Colorado.

Chicago Style (17th ed.) Citation

George, Russell D. Geology and Natural Resources of Colorado. Boulder, Col: University of Colorado, 1927.

MLA (9th ed.) Citation

George, Russell D. Geology and Natural Resources of Colorado. University of Colorado, 1927.

Warning: These citations may not always be 100% accurate.