O'Dell, A. (1967). Geography: Our earth and its people. Grolier.
Chicago Edition CitationO'Dell, A.C. Geography: Our Earth and Its People. London: Grolier, 1967.
MLA引文O'Dell, A.C. Geography: Our Earth and Its People. Grolier, 1967.
警告：這些引文格式不一定是100％准確.