000
00251nam a2200097Ia 4500
008
230508s1999 xx 000 0 und d
041
_a
eng
100
_a
GREG PERRY
245
_a
TEACH TOURSELF VISUAL BASIC-6 IN 21 DAYS
260
_b
SAMS TECHMEDIA
_c
1999
999
_c
321979
_d
321979