Armstrong, A. K., & Mamet, B. L. (1976). Biostratigraphy and regional relations of the Mississippian Leadville limestone in the San Juan Mountains, southwestern Colorado. United States Department of the Interior, Geological Survey.
Chicago Style (17th ed.) CitationArmstrong, Augustus K., and Bernard L. Mamet. Biostratigraphy and Regional Relations of the Mississippian Leadville Limestone in the San Juan Mountains, Southwestern Colorado. Washington: United States Department of the Interior, Geological Survey, 1976.
MLA (9th ed.) CitationArmstrong, Augustus K., and Bernard L. Mamet. Biostratigraphy and Regional Relations of the Mississippian Leadville Limestone in the San Juan Mountains, Southwestern Colorado. United States Department of the Interior, Geological Survey, 1976.