5.1 References
Africa Filefolder for Spatial Analysis. S Drive.
Africa (Mar/Apr, 1996). "Africa". International Wildlife Vol. 26 Issue 2, 30.
Africa Political Map. http://www.lib.utexas.edu/Libs/PCL/map_collection/africa/Africa_6_97.ipg
Barrow, C.J.
(1991). Land degradation: development and breakdown of terrestrial
environments. Cambridge England:
Cambridge Unversity
Press.
Boukhari, Sophie (Jan., 1999). "Soils in torment". UNESCO Courier Vol. 52 Issue 1, 10.
Hudson, Norman (1995). Soil Conservation. London England: Redwood Books.
Living Atlas (2000). "Natural Vegetation in Africa". http://library.thinkquest.org/16645/media/maps/pcl/Africa_veg_86.ipg
Stroh, M. &
Raloff, J (April, 1992). "New UN soil survey: The dirt on erosion".
Science
News Vol. 141 Issue 14, 215.