000 00475nam a2200169Ia 4500
008 130223s9999 xx 000 0 und d
020 _a9251004102
080 _a631.4
245 _aAssessing soil degradation : report of an FAO/UNEP Expert Consultation held in R
260 _aRome
260 _bFood and Agriculture Organization on the United Nations,
260 _c1977
300 _a83p
440 _aFAO Soils Bulletin 34
901 _pS58967
942 _cB
_2udc
999 _c116311
_d116311