000 00284nam a2200121Ia 4500
003 LDD
040 _cLDD
245 0 _aVentures in policy science
260 _aNew York
_bAmerican elsevier publishing company
_c1971
300 _axi,321p.
903 _bGifted by : insa
942 _2ddc
_cG
999 _c11130
_d11130