Burbank, W. S., & Luedke, R. G. (1969). Geology and ore deposits of the Eureka and adjoining districts, San Juan Mountains, Colorado: A study of part of the western San Juan Mountains eruptive center, its related cauldron subsidence structures, altered volcanic rocks, and ore deposits. U.S. Government Print. Office.
Chicago Style (17th ed.) CitationBurbank, Wilbur S., and Robert G. Luedke. Geology and Ore Deposits of the Eureka and Adjoining Districts, San Juan Mountains, Colorado: A Study of Part of the Western San Juan Mountains Eruptive Center, Its Related Cauldron Subsidence Structures, Altered Volcanic Rocks, and Ore Deposits. Washington, DC: U.S. Government Print. Office, 1969.
MLA (9th ed.) CitationBurbank, Wilbur S., and Robert G. Luedke. Geology and Ore Deposits of the Eureka and Adjoining Districts, San Juan Mountains, Colorado: A Study of Part of the Western San Juan Mountains Eruptive Center, Its Related Cauldron Subsidence Structures, Altered Volcanic Rocks, and Ore Deposits. U.S. Government Print. Office, 1969.