LEADER 00817nam0-22003011i-450- 001 990003188110403321 010 $a0-8039-3775-X 035 $a000318811 035 $aFED01000318811 035 $a(Aleph)000318811FED01 035 $a000318811 100 $a20000920d1991----km-y0itay50------ba 101 0 $aita 102 $aIT 200 1 $aScale Development$eTheory and Applications$fRobert F. DeVellis. 210 $aNewbury Park$aLondon$cSage$d1991. 215 $a120 p.$d19 cm 225 1 $aApplied Social Research Methods Series$v26 676 $a11360 702 1$aDevellis,$bRobert F. 801 0$aIT$bUNINA$gRICA$2UNIMARC 901 $aBK 912 $a990003188110403321 952 $a11360 DEV$b11372$fSES 959 $aSES 996 $aScale Development$9452104 997 $aUNINA DB $aING01