000			00667nam a2200217Ia 4500
008			230524s9999 xx 000 0 und d
020			_a1 8 99825 56
040			_cUDSM
050			_aIRA S599.5.A35N87
100	1		_aHillhorst, Thea _eAuthor
245	1	0	_aNutrients on the move _b: soil fertility dynamics in African farming systems
260			_aLondon : _bInternational institute for Environment and Development, _c2000.
300			_avi,146p.
300			_c25cm.
504			_aIncludes bibliographical references
650			_aSoil fertility management
650			_aFarming systems
650			_aLivelihoods
650			_aAfrica
942			_2lcc _cBK _n0
999			_c79401 _d79401