Boehm, R. G., Armstrong, D. G., & Hunkins, F. P. Geography: The world and its people.
Chicagoスタイル(17版)引用形式Boehm, Richard G., David G. Armstrong, , Francis P. Hunkins. Geography: The World and Its People.
MLA(8版)引用形式Boehm, Richard G., et al. Geography: The World and Its People.
警告: この引用は必ずしも正確ではありません.