O'Dell, A. (1967). Geography: Our earth and its people. Grolier.
Čikaški stil citiranjaO'Dell, A.C. Geography: Our Earth and Its People. London: Grolier, 1967.
MLA način citiranjaO'Dell, A.C. Geography: Our Earth and Its People. Grolier, 1967.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.