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MLA
United States. Army Map Service. (Cartographer). Eastern Siberia 1:250,000. Series N504. [Troitskoye, Sheet NM53-9] - University of Texas Libraries Collections. 1947. https://collections.lib.utexas.edu/catalog/utlmaps:f956ae9e-a922-41b9-aed6-fd9001ff6135APA
United States. Army Map Service. (Cartographer). (1947). Eastern Siberia 1:250,000. Series N504. [Troitskoye, Sheet NM53-9]. Retrieved March 22, 2023, from https://collections.lib.utexas.edu/catalog/utlmaps:f956ae9e-a922-41b9-aed6-fd9001ff6135Chicago
United States. Army Map Service. (Cartographer). Eastern Siberia 1:250,000. Series N504. [Troitskoye, Sheet NM53-9]. 1947. "Eastern Siberia 1:250,000. Series N504. [Troitskoye, Sheet NM53-9] – Collections". University of Texas Libraries Collections. <https://collections.lib.utexas.edu/catalog/utlmaps:f956ae9e-a922-41b9-aed6-fd9001ff6135> (22-March-2023).Note that these citations have been automatically generated, please verify that citation is correct and contains all necessary information.