APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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