LEADER 00764nam0-22002531i-450- 001 990001041670403321 035 $a000104167 035 $aFED01000104167 035 $a(Aleph)000104167FED01 035 $a000104167 100 $a--------d--------km-y0itay50------ba 101 0 $aeng 200 1 $a<>Flying Trapeze$eThree Crises for Physicists$eThe Widden Lectures for 1962$fJ. Robert Oppenheimer 210 $aLondon [etc.]$cOxford University Press$d1964 610 0 $aStoria della fisica 676 $a509 700 1$aOppenheimer,$bJulius Robert$f<1904-1967>$028659 801 0$aIT$bUNINA$gRICA$2UNIMARC 901 $aBK 912 $a990001041670403321 952 $a6D-217$b13918$fFI1 959 $aFI1 996 $aFlying Trapeze$9338579 997 $aUNINA LEADER 01272nam 2200361Ka 450 001 9910695263303321 005 20060815165205.0 035 $a(CKB)5470000002368106 035 $a(OCoLC)70903353 035 $a(EXLCZ)995470000002368106 100 $a20060815d2006 ua 0 101 0 $aeng 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 00$aStatistics in brief$b[electronic resource] $ethe early reading and mathematics achievement of children who repeated kindergarten or who began school a year late 210 1$a[Washington, D.C.] :$cUnited States Dept. of Education, National Center for Educational Statistics,$d[2006] 215 $a21 pages $cdigital, PDF file 300 $aTitle from title screen (viewed on Aug. 15, 2006). 300 $a"May 2006." 300 $a"NCES 2006-064." 320 $aIncludes bibliographical references. 517 $aStatistics in brief 606 $aGrade repetition$zUnited States$vStatistics 608 $aStatistics.$2lcgft 615 0$aGrade repetition 712 02$aNational Center for Educational Statistics. 801 0$bGPO 801 1$bGPO 906 $aBOOK 912 $a9910695263303321 996 $aStatistics in brief$93426189 997 $aUNINA