Ahmad, Yusuf J. Desertification : financial support for the biosphere / Yusuf J. Ahmad, Mohamed Kassas. - West Hartford, CT. : Kumarian Press, 1987. - xviii, 187 p. : ill. ; 24 cm. Sponsored by the United Nations Environment Programme. Includes bibliographies and index. ISBN: 0931816998 Subjects--Topical Terms: Desertification --Control------