LEADER 00919nam0-2200337---450- 001 990008646690403321 005 20081002151210.0 010 $a0-19-502553-9 035 $a000864669 035 $aFED01000864669 035 $a(Aleph)000864669FED01 035 $a000864669 100 $a20080415d1982----km-y0itay50------ba 101 0 $aeng 102 $aUS 105 $ay-------001yy 200 1 $aLanguage two$eHeidi Dulay, Marina Burt, Stephen Krashen 210 $aNew York$cOxford University Press$d1982 215 $axv, 315 p.$d23 cm 610 0 $aLinguaggio$aApprendimento 676 $a407 700 1$aDulay,$bHeidi$0304827 701 1$aBurt,$bMarina$0191612 701 1$aKrashen,$bb Stephen D.$0503289 801 0$aIT$bUNINA$gRICA$2UNIMARC 901 $aBK 912 $a990008646690403321 952 $a407 DUL$bs.i.$fDECLI 959 $aDECLI 996 $aLanguage two$9716488 997 $aUNINA