Cite
MLA
Geological Survey (U.S.) (cartographer), Texas Board of Water Engineers. (cartographer). Texas, Zavalla quadrangle Dept. of the Interior, U.S. Geological Survey ; State of Texas Board of Water Engineers. - University of Texas Libraries Collections. 1931-01-01. https://collections.lib.utexas.edu/catalog/utlmaps:e56bc521-356b-419b-8390-e69091fcd712APA
Geological Survey (U.S.) (cartographer), Texas Board of Water Engineers. (cartographer). (1931-01-01). Texas, Zavalla quadrangle Dept. of the Interior, U.S. Geological Survey ; State of Texas Board of Water Engineers.. Retrieved May 30, 2026, from https://collections.lib.utexas.edu/catalog/utlmaps:e56bc521-356b-419b-8390-e69091fcd712Chicago
Geological Survey (U.S.) (cartographer), Texas Board of Water Engineers. (cartographer). Texas, Zavalla quadrangle Dept. of the Interior, U.S. Geological Survey ; State of Texas Board of Water Engineers.. 1931-01-01. "Texas, Zavalla quadrangle Dept. of the Interior, U.S. Geological Survey ; State of Texas Board of Water Engineers. – Collections". University of Texas Libraries Collections. <https://collections.lib.utexas.edu/catalog/utlmaps:e56bc521-356b-419b-8390-e69091fcd712> (30-May-2026).Note that these citations have been automatically generated, please verify that citation is correct and contains all necessary information.