TY - BOOK ED - van Duivenbooden, N ED - Pala, M ED - Studer, C ED - Bielders, C L AV - public TI - Efficient soil water use: the key to sustainable crop production in the dry areas of West Asia, and North and Sub-Shararan Africa: proceedings of the Workshop, Niamey, Niger, 26-30 April 1998 and proceedings of the Workhop, Amman, Jordon, 9-13 May 1999 UR - http://oar.icrisat.org/493/ Y1 - 1999/// ID - icrisat493 SN - 9290664003 CY - Aleppo, Syria PB - International Center for Agricultural Research in the Dry Areas ER -