Heyl, A. V. (1957). Zoning of the Bitter Creek vanadium-uranium deposit near Uravan, Colorado. [United States Department of the Interior, Geological Survey].
Chicago Style (17th ed.) CitationHeyl, Allen V. Zoning of the Bitter Creek Vanadium-uranium Deposit Near Uravan, Colorado. [Washington, D.C.]: [United States Department of the Interior, Geological Survey], 1957.
MLA (9th ed.) CitationHeyl, Allen V. Zoning of the Bitter Creek Vanadium-uranium Deposit Near Uravan, Colorado. [United States Department of the Interior, Geological Survey], 1957.
Warning: These citations may not always be 100% accurate.