Baltz, E. H., Ash, S. R., & Anderson, R. Y. (1966). History of nomenclature and stratigraphy of rocks adjacent to the Cretaceous-Tertiary boundary, western San Juan Basin, New Mexico. U.S. Geological Survey : U.S. G.P.O..
Chicago Style (17th ed.) CitationBaltz, Elmer Harold, Sidney R. Ash, and Roger Y. Anderson. History of Nomenclature and Stratigraphy of Rocks Adjacent to the Cretaceous-Tertiary Boundary, Western San Juan Basin, New Mexico. Washington, D.C.: U.S. Geological Survey : U.S. G.P.O., 1966.
MLA (9th ed.) CitationBaltz, Elmer Harold, et al. History of Nomenclature and Stratigraphy of Rocks Adjacent to the Cretaceous-Tertiary Boundary, Western San Juan Basin, New Mexico. U.S. Geological Survey : U.S. G.P.O., 1966.
Warning: These citations may not always be 100% accurate.