1. History of nomenclature and stratigraphy of rocks adjacent to the Cretaceous-Tertiary boundary, western San Juan Basin, New Mexico Author/Creator: Baltz, Elmer H. 1927-2015, (Elmer Harold), author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1966 Resource Type: Book Access & Availability: Loading
2. History of nomenclature and stratigraphy of rocks adjacent to the Cretaceous-Tertiary boundary, western San Juan Basin, New Mexico Author/Creator: Baltz, Elmer H. 1927-2015. (Elmer Harold) Publication/Creation: Washington, D.C. : U.S. Geological Survey : U.S. Govt. Print. Off, 1966 Resource Type: Book Is Part Of: U.S. Geological Survey professional paper, no. 524 A-I. Access & Availability: Loading