Edited by Sommers, L. M. (1967). Cultural Geography: Selected readings. Thomas Y. Crowell Co..
Cita Chicago (17th ed.)Edited by Sommers, Lawrence M. Cultural Geography: Selected Readings. New York: Thomas Y. Crowell Co., 1967.
Cita MLA (9th ed.)Edited by Sommers, Lawrence M. Cultural Geography: Selected Readings. Thomas Y. Crowell Co., 1967.
Atenció: Aquestes cites poden no estar 100% correctes.