000 00321nam a2200133Ia 4500
008 211214s9999 xx 000 0 und d
040 _cJayakar Knowledge Resource Centre
100 _aSpann, A
245 0 _aPrincipal theories.
260 _bUNDP
_aJENA
_c1940
300 _a219 p p.
653 _aECONOMICS
942 _c1
999 _c19334
_d19334