Thompson, M. M. (1981). Maps for America: Cartographic products of the U.S. Geological Survey and others (2nd ed.). U.S. Dept. of the Interior, Geological Survey National Center.
Chicago Style (17th ed.) CitationThompson, Morris M. Maps for America: Cartographic Products of the U.S. Geological Survey and Others. 2nd ed. Reston, Va.: U.S. Dept. of the Interior, Geological Survey National Center, 1981.
MLA (9th ed.) CitationThompson, Morris M. Maps for America: Cartographic Products of the U.S. Geological Survey and Others. 2nd ed. U.S. Dept. of the Interior, Geological Survey National Center, 1981.
Warning: These citations may not always be 100% accurate.