Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

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