00494nam a2200169Ia 4500082001900000100005100019245003600070260004800106300001400154500000500168690000600173700000500179952009900184964001700283921000900300999001500309  a339.3bN277.PC  aNational Bureau of Economic Research, New York  aProblems of capital formationb  aPrincetonbPrinceton University Pressc1967  axi, 612p.  a  a   a  00104070aISIbISId1998-09-01l0o339.3 N277.PCpDP122r2019-02-14 00:00:00w2019-02-14yBK  abcdefg  a7679  c7679d7679