000 00406nam a2200157Ia 4500
003 LDD
008 181029s9999 xx 000 0 und d
020 _a521313430
040 _cLDD
100 _aJONES, Leo
245 0 _aProgress to proficiency
_bteacher's book
_cLeo JONES
260 _aCambridge
_bCambridge University Press
_c1991
300 _avi,169p.
901 _a1306
_b12-03-1998
942 _2ddc
_cBK
999 _c45226
_d45226