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MLA
United States. Army Map Service. (Cartographer). Eastern Siberia 1:250,000. Series N504. [Ust'-Tyrma, Sheet NM52-6] - University of Texas Libraries Collections. 1947. https://collections.lib.utexas.edu/catalog/utlmaps:9d70d80c-a06b-4248-a5d1-5b3f8c84153dAPA
United States. Army Map Service. (Cartographer). (1947). Eastern Siberia 1:250,000. Series N504. [Ust'-Tyrma, Sheet NM52-6]. Retrieved July 30, 2025, from https://collections.lib.utexas.edu/catalog/utlmaps:9d70d80c-a06b-4248-a5d1-5b3f8c84153dChicago
United States. Army Map Service. (Cartographer). Eastern Siberia 1:250,000. Series N504. [Ust'-Tyrma, Sheet NM52-6]. 1947. "Eastern Siberia 1:250,000. Series N504. [Ust'-Tyrma, Sheet NM52-6] – Collections". University of Texas Libraries Collections. <https://collections.lib.utexas.edu/catalog/utlmaps:9d70d80c-a06b-4248-a5d1-5b3f8c84153d> (30-July-2025).Note that these citations have been automatically generated, please verify that citation is correct and contains all necessary information.