Cite
MLA
Geological Survey (U.S.) (cartographer). Texas Petronilla quadrangle - University of Texas Libraries Collections. 1941-01-01. https://collections.lib.utexas.edu/catalog/utlmaps:8e450f4d-2c05-4d2d-bec3-d3a5f3fecdc5APA
Geological Survey (U.S.) (cartographer). (1941-01-01). Texas Petronilla quadrangle. Retrieved May 26, 2026, from https://collections.lib.utexas.edu/catalog/utlmaps:8e450f4d-2c05-4d2d-bec3-d3a5f3fecdc5Chicago
Geological Survey (U.S.) (cartographer). Texas Petronilla quadrangle. 1941-01-01. "Texas Petronilla quadrangle – Collections". University of Texas Libraries Collections. <https://collections.lib.utexas.edu/catalog/utlmaps:8e450f4d-2c05-4d2d-bec3-d3a5f3fecdc5> (26-May-2026).Note that these citations have been automatically generated, please verify that citation is correct and contains all necessary information.