Davis, W. M., & Johnson, D. W. (1909). Geographical essays. Ginn and company.
Chicagoスタイル(17版)引用形式Davis, William Morris, , Douglas Wilson Johnson. Geographical Essays. Boston, New York: Ginn and company, 1909.
MLA(8版)引用形式Davis, William Morris, , Douglas Wilson Johnson. Geographical Essays. Ginn and company, 1909.
警告: この引用は必ずしも正確ではありません.