TY - GEN AU - United Nations Environment Programme A4 - Burke, Enid A4 - Kassas, M. A4 - Lycett, Andrew A4 - Le Houérou, Henry A4 - Tolba, M.K. A4 - Hanson, Haldore PY - 1978 SN - 0379 455 UR - https://wedocs.unep.org/handle/20.500.11822/28981 LA - English KW - desertification KW - land degradation KW - ecosystem TI - Desertification Control: The Semi-annual Bulletin on Plans and Activities Volume 1 Number 2 December 1978 M3 - Communication or other resource ER -