*0011548834 *008900301s1989 xx# 000 0 nob *019 $bk *08230$a330.092 *100 $aQvigstad, Jan Fredrik$_147807900 *245 $a"Er det så opplagt at-"$cav Jan Fredrik Qvigstad *300 $aS. 25-27 : port. *520 $aOm Trygve Haavelmo *600 $aHaavelmo, Trygve$_124019500 *773 $tSosialøkonomen$gÅrg. 43, nr 11 (1989)$x0038-1624$w(NO-LaBS)498238(tnr) *999 $z9000116616$anorart:9000116616 ^