000 00389nam a2200157 i 4500
008 991231s1997 sp g eng
020 _a0582247411
080 1 _aD.IG/12
100 _aVARIOS
245 0 _aESSENTIAL ACTIVATOR
_c/ VARIOS
250 _a3ยช
260 _b:LONGMAN
_c,1997
300 _a997
_c;22cm
997 _e2