000 00611cam a22002412a 4500
001 010248
003 AR-FADEU
008 311216n1978####xxu####################dd
020 _a0-521-22059-9
092 _a428.321
_bM248v
100 _aMaley, Alan
245 _aVariations on a theme
260 _aLondon
260 _bCambridge
260 _c1978
300 _a171 p
440 _aCambridge english language learming
500 _aCon cassette de audio
700 _aAlan, Duff
650 _a/LINGUISTICA/INGLES-USO; PERCEPCION Y COMPRENSION/REVISADO/
546 _aInglés
942 _cBDGR
999 _c16042
_d16042