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MLA
United States. Army Map Service. (Cartographer). Central Philippines 1:25,000. Series S831. [Progreso SW, Sheet 3448-III-SW] - University of Texas Libraries Collections. 1944. https://collections.lib.utexas.edu/catalog/utlmaps:7b1ee674-babe-4286-b837-dc663f3a2509APA
United States. Army Map Service. (Cartographer). (1944). Central Philippines 1:25,000. Series S831. [Progreso SW, Sheet 3448-III-SW]. Retrieved June 20, 2025, from https://collections.lib.utexas.edu/catalog/utlmaps:7b1ee674-babe-4286-b837-dc663f3a2509Chicago
United States. Army Map Service. (Cartographer). Central Philippines 1:25,000. Series S831. [Progreso SW, Sheet 3448-III-SW]. 1944. "Central Philippines 1:25,000. Series S831. [Progreso SW, Sheet 3448-III-SW] – Collections". University of Texas Libraries Collections. <https://collections.lib.utexas.edu/catalog/utlmaps:7b1ee674-babe-4286-b837-dc663f3a2509> (20-June-2025).Note that these citations have been automatically generated, please verify that citation is correct and contains all necessary information.