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MLA
Geological Survey (U.S.) (cartographer). Texas Blanco sheet Dept. of the Interior, U.S. Geological Survey. - University of Texas Libraries Collections. 1918. https://collections.lib.utexas.edu/catalog/utlmaps:eaa98a9b-a113-4657-9c7b-bc7f94da3ebeAPA
Geological Survey (U.S.) (cartographer). (1918). Texas Blanco sheet Dept. of the Interior, U.S. Geological Survey.. Retrieved August 01, 2025, from https://collections.lib.utexas.edu/catalog/utlmaps:eaa98a9b-a113-4657-9c7b-bc7f94da3ebeChicago
Geological Survey (U.S.) (cartographer). Texas Blanco sheet Dept. of the Interior, U.S. Geological Survey.. 1918. "Texas Blanco sheet Dept. of the Interior, U.S. Geological Survey. – Collections". University of Texas Libraries Collections. <https://collections.lib.utexas.edu/catalog/utlmaps:eaa98a9b-a113-4657-9c7b-bc7f94da3ebe> (01-August-2025).Note that these citations have been automatically generated, please verify that citation is correct and contains all necessary information.