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MLA
International Boundary & Water Commission, United States & Mexico. (cartographer), Mills, Anson (Field director), Follett, W. W. (consultant), United States. Department of State. (Originator). Sheet No. 21 Topographical Map of the Rio Grande Scale 1 in 10,000 [San Ysidro Ranch, Refugio Ranch, Texas] - University of Texas Libraries Collections. 1913. https://collections.lib.utexas.edu/catalog/utlmaps:f4dcc9e7-9506-4ddb-9e38-2888e85e4c4fAPA
International Boundary & Water Commission, United States & Mexico. (cartographer), Mills, Anson (Field director), Follett, W. W. (consultant), United States. Department of State. (Originator). (1913). Sheet No. 21 Topographical Map of the Rio Grande Scale 1 in 10,000 [San Ysidro Ranch, Refugio Ranch, Texas]. Retrieved September 08, 2024, from https://collections.lib.utexas.edu/catalog/utlmaps:f4dcc9e7-9506-4ddb-9e38-2888e85e4c4fChicago
International Boundary & Water Commission, United States & Mexico. (cartographer), Mills, Anson (Field director), Follett, W. W. (consultant), United States. Department of State. (Originator). Sheet No. 21 Topographical Map of the Rio Grande Scale 1 in 10,000 [San Ysidro Ranch, Refugio Ranch, Texas]. 1913. "Sheet No. 21 Topographical Map of the Rio Grande Scale 1 in 10,000 [San Ysidro Ranch, Refugio Ranch, Texas] – Collections". University of Texas Libraries Collections. <https://collections.lib.utexas.edu/catalog/utlmaps:f4dcc9e7-9506-4ddb-9e38-2888e85e4c4f> (08-September-2024).Note that these citations have been automatically generated, please verify that citation is correct and contains all necessary information.