See C. Kruger et al., Sahara (tr. 1969); M. Williams and H. Faure, ed., The Sahara and the Nile: Quarternary Environments and Prehistoric Occupation in Northern Africa (1980); J. Cloudsley-Thompson, ed., Key Environments: Sahara Desert (1984); E. Gautier, Sahara (1987).
The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.