Clarke, J. I. (1972). Population geography (2nd ed.). Pergamon Press.
Citación estilo ChicagoClarke, John I. Population Geography. 2nd ed. Oxford ; New York: Pergamon Press, 1972.
Cita MLAClarke, John I. Population Geography. 2nd ed. Pergamon Press, 1972.
Warning: These citations may not always be 100% accurate.