Cita APA (7a ed.)
Thompson, M. M. (1979). Maps for America. Cartographic Products of the U. S. Geological Survey and others. John Wesley Powell Federal Building.
Cita Chicago Style (17a ed.)
Thompson, Morris M. Maps for America. Cartographic Products of the U. S. Geological Survey and Others. Virginia: John Wesley Powell Federal Building, 1979.
Cita MLA (9a ed.)
Thompson, Morris M. Maps for America. Cartographic Products of the U. S. Geological Survey and Others. John Wesley Powell Federal Building, 1979.
Precaución: Estas citas no son 100% exactas.