01250nam0-22003611i-450 99000543414020331620190222105130.0000543414USA01000543414(ALEPH)000543414USA0100054341420010829d1988----a--|0enac50------baengUS||||R |||||Arid landstoday and tomorrowProceeding of an International Research and D evelopment conference Tucson, Arizzona, U.S.A. october 20-25, 1985edited by E mil E. Witehead... [et al. ]Boulder, ColoradoWestview Press1988 - XIX1435 p. : graf. e tab. ; 28 cm1435 p.28 cm.Tucson Arizzona, october 20-25, 1985333.73Terra21WITEHEAD,Emily E.Proceedings of an Interantional Research and Development ConferenceITSOL20120104990005434140203316DIP.TO SCIENZE ECONOMICHE - (SA)DS 333.7 WHI2970 DISES300 333.736 WHI2970 DISESBKDISES20121027USA01153220121027USA011612Arid lands676846UNISAUSA2717