Dyfyniad APA

Swanson, J. L. (1987). LaidLaw world geography: A physical and cultural approach. Glencoe.

Dyfyniad Arddull Chicago

Swanson, James L. LaidLaw World Geography: A Physical and Cultural Approach. New York: Glencoe, 1987.

Dyfyniad MLA

Swanson, James L. LaidLaw World Geography: A Physical and Cultural Approach. Glencoe, 1987.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.