Lovering, T. S., & Tweto, O. (1953). Geology and ore deposits of the Boulder County tungsten district, Colorado. United States Department of the Interior, Geological Survey.
Chicago Style (17th ed.) CitationLovering, T. S., and Ogden Tweto. Geology and Ore Deposits of the Boulder County Tungsten District, Colorado. Washington: United States Department of the Interior, Geological Survey, 1953.
MLA (9th ed.) CitationLovering, T. S., and Ogden Tweto. Geology and Ore Deposits of the Boulder County Tungsten District, Colorado. United States Department of the Interior, Geological Survey, 1953.
Warning: These citations may not always be 100% accurate.