Cita APA

Dunbar, G. S. (1991). Modern geography: An encyclopedic survey. Garland.

Citación estilo Chicago

Dunbar, Gary S. Modern Geography: An Encyclopedic Survey. New York: Garland, 1991.

Cita MLA

Dunbar, Gary S. Modern Geography: An Encyclopedic Survey. Garland, 1991.

Warning: These citations may not always be 100% accurate.