00380nam a2200109Ia 4500082002100000100003600021245013100057260003500188300001300223500000500236700002900241  a338.016bG858.ES  aGriliches, Zvi and Ringstad, V.  aEconomies of scale and the form of the producton function; an econometric study of Norwegian manufacturing establishmentdatab  aAmsterdambNorth-Hollandc1971  ax, 204p.  a  aRingstad, V. ; jt. auth.