00310nam a2200109Ia 4500082002100000100002400021245009400045260003500139300001600174500000500190700000500195  a330.155bV279.IW  aVan Pragg, B. M. S.  aIndividual welfare functions and consumer behavior ; a theory of rational irrationalityb  aAmsterdambNorth-Hollandc1968  axvii, 235p.  a  a