1. Stratigraphic nomenclature of the Newark Supergroup of eastern North America Author/Creator: Luttrell, Gwendolyn Lewise Werth, 1927- Publication/Creation: Washington : U.S. G.P.O. ; Denver, CO (Federal Center, Box 25425, Denver 80225) : For sale by the Books and Open-File Reports Section, U.S. Geological Survey, 1990 Resource Type: Book Access & Availability: Loading
2. Stratigraphic nomenclature of the Newark Supergroup of eastern North America Author/Creator: Luttrell, Gwendolyn Lewise Werth, 1927- author Publication/Creation: [Reston, Va.] : Department of the Interior, U.S. Geological Survey, 1989 Resource Type: Book Access & Availability: Loading
3. Stratigraphy of the uppermost Triassic and the Jurassic rocks of the Navajo country Author/Creator: Harshbarger, J. W. 1914- (John William) Publication/Creation: Washington : U.S. Govt. Print. Off, 1957 Resource Type: Book Is Part Of: U.S. Geological Survey professional paper, no. 290-293. Access & Availability: Loading