Exploring Africa and Asia.
Ettinger, Nathalie.Heartland of Asia.
Huxley, Elspeth,1907-1997.Challenge of Africa.
Hamilton, Paul.Seas of sand.
Part one. The heartland of Asia / by Nathalie Ettinger -- Part two. The challenge of Africa / by Elspeth Huxley -- Part three. Seas of sand / by Paul Hamilton.
Discoveries in geography.