000 00497nam a2200193Ia 4500
008 230524s9999 xx 000 0 und d
040 _cUDSM
050 _aS613.I48
245 0 _aArid lands in transition (papers)
260 _aWashington, D. C.
260 _bAmerican Association for the Advancement of Science
260 _c1970
300 _axiii,574p.
300 _c24cm.
650 _aAgriculture
700 _aill.
942 _2Library of Congress Classification
942 _cBook
999 _c29522
_d29522