Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (8th ed.)

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