Arab Center for the Studies of Arid Zones and Dry Lands2007-11-121991-04-012007-11-121991http://hdl.handle.net/10625/12947Text1 digital file (177 p.)Application/pdfarPLANTSARID ZONEARAB COUNTRIESArab Data Base for Arid Plants : ADAP; Data Base Management System (operational E.D.P. manual) [Arabic language]Manual