000 00304nam a22001217a 4500
020 _a0821321307
082 _a338.4766
_bCON.N2
100 _aConstant, Kurt Michael.
245 _aWorld nitrogen survey;
260 _aWashington, D C;
_bWorld Bank.
_c1992.
300 _a190P.
_bill.
942 _2ddc
_cUN&WB
999 _c725211
_d725211