000			00331nam a2200121Ia 4500
008			150317s9999 xx 000 0 und d
080			_a551.58(082.2)(252) _bUNE-P
245			_aProblems of the arid zone
260			_c1962 _aFontenoy _bUnesco Publication
300			_axii, 481 p.
650			_aArid Zone - Symposium
942			_2udc _cBK
999			_c9232 _d9232