00314nam a2200109Ia 4500082001900000100003600019245008600055260003500141300001800176500000500194700000500199  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