O'Dell, A. (1967). Geography: Our earth and its people. Grolier.
استشهاد بنمط شيكاغوO'Dell, A.C. Geography: Our Earth and Its People. London: Grolier, 1967.
MLA استشهادO'Dell, A.C. Geography: Our Earth and Its People. Grolier, 1967.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.