00281nam a2200109Ia 450000500170000008000180001710000190003524500600005426000250011430000140013958300180015320260716043824.0  a09.01.04 G974  aGumbs, Barbara  aProducer services : telecommunication and data services  b[s.n.]a[S.l.]c1989  a16 leaves  c7/13/07kJOYD