000			00377nam a2200145 a 4500
020			_a0869257021
082	0	0	_a333.736
245	0	4	_aThe encroaching desert :
260			_aHarare : _bCollege Press, _cc1990
300			_a132 p. :
500			_aIncludes bibliographical references and index
650		0	_aDesertification.
650		0	_aArid regions agriculture.
942			_cBK01
999			_c5297 _d5297