Advancing sands : deserts and migration
2006
Arid ecosystems
Vegetation of the Soviet polar deserts
1988
Aleksandrova, V. D. |
East African ecosystems and their conservation
1996
McClanahan, T. R. |
Young, T. P. |
Un territoire de mare au Sahel : Ossolo, Niger occidental
1984
Marie, Jérome |
Marie, Jérôme |
Natural history of Dalhousie Springs
1989
Zeidler, W. |
Ponder, W. F. |