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.
Cita MLAO'Dell, A.C. Geography: Our Earth and Its People. Grolier, 1967.
Atenció: Aquestes cites poden no estar 100% correctes.