Olsson, K., & Rapp, A. (1991). Dryland degradation in central Sudan and conservation for survival. [Lund]: [s.n.].
Chicago Style CitationOlsson, Katarina, and Anders Rapp. Dryland Degradation in Central Sudan and Conservation for Survival. [Lund]: [s.n.], 1991.
MLA CitationOlsson, Katarina, and Anders Rapp. Dryland Degradation in Central Sudan and Conservation for Survival. [Lund]: [s.n.], 1991.
Warning: These citations may not always be 100% accurate.