1. Pennsylvanian carbonates, paleoecology, and rugose colonial corals, north flank, eastern Brooks Range, Arctic Alaska Author/Creator: Armstrong, Augustus K., author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1972 Resource Type: Book Access & Availability: Loading
2. Pennsylvanian carbonates, paleoecology, and rugose colonial corals, north flank, eastern Brooks Range, Arctic Alaska, Author/Creator: Armstrong, Augustus K. Publication/Creation: Washington : U.S. Govt. Print. Off, 1972 Resource Type: Book Is Part Of: U.S. Geological Survey professional paper, no. 744-749. Access & Availability: Loading