00521nam a2200169Ia 4500082001900000100003600019245008600055260003500141300001800176500000500194690000600199700000500205952010000210964001700310921000900327999001500336  a338.9bP816.SW  aPontificia Academia Scientiarvm  aStudy week on the econometric approach to development planning, Oct. 7-13, 1963b  aAmsterdambNorth-Hollandc1965  axlvii, 1259p.  a  a   a  00104070aISIbISId1998-08-25l0o338.9 P816.SWpDP2599r2019-02-14 00:00:00w2019-02-14yBK  abcdefg  a6025  c6025d6025