1. Ostracodes from the upper part of the Sundance Formation of South Dakota, Wyoming and Southern Montana Author/Creator: Swain, Frederick M. 1916-2008. (Frederick Morrill) Publication/Creation: Washington : U.S. Govt. Print. Off, 1952 Resource Type: Book Is Part Of: U.S. Geological Survey professional paper, no. 243. Access & Availability: Loading
2. Ostracodes from the upper part of the Sundance Formation of South Dakota, Wyoming and Southern Montana Author/Creator: Swain, Frederick M. 1916-2008, (Frederick Morrill), author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1952 Resource Type: Book Access & Availability: Loading