Swanson, J. L. (1987). LaidLaw world geography: A physical and cultural approach. Glencoe.
Citación estilo ChicagoSwanson, James L. LaidLaw World Geography: A Physical and Cultural Approach. New York: Glencoe, 1987.
Cita MLASwanson, James L. LaidLaw World Geography: A Physical and Cultural Approach. Glencoe, 1987.
Warning: These citations may not always be 100% accurate.