Swanson, J. L. (1987). LaidLaw world geography: A physical and cultural approach. Glencoe.
Chicagoスタイル(17版)引用形式Swanson, James L. LaidLaw World Geography: A Physical and Cultural Approach. New York: Glencoe, 1987.
MLA(8版)引用形式Swanson, James L. LaidLaw World Geography: A Physical and Cultural Approach. Glencoe, 1987.
警告: この引用は必ずしも正確ではありません.