APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

Kontuz: berrikusi erreferentzia hauek erabili aurretik.