000 00309nam a2200097Ia 4500
008 120224s9999 xx 000 0 und d
082 _a338.9
_bDUR
100 _aDurbin, E.F.M.
245 _aProblems of economic planning : papers on planning and economics.
260 _bAugustus.M.Kelley.
_aNew York.
_c1968
999 _c134093
_d134093