Darkoh, M. B. (1989). Combating desertification in the Southern African region: An updated regional assessment. UNEP.
Style de citation Chicago (17e éd.)Darkoh, Michael B.K. Combating Desertification in the Southern African Region: An Updated Regional Assessment. [S.l.]: UNEP, 1989.
Style de citation MLA (9e éd.)Darkoh, Michael B.K. Combating Desertification in the Southern African Region: An Updated Regional Assessment. UNEP, 1989.
Attention : ces citations peuvent ne pas être correctes à 100%.