Eléments de bibliographie sur la sécheresse au Sahel Elements for a bibliography of the Sahel drought
Organisation for Economic Co-operation and Development.Development Centre.
Paris O.E.C.D.
1980
Volumes I-II updatings 1, 2, 3, 4 : years 1976, 1977, 1978, 1979, 1980
Droughts.