1999 - Visual Basic 6 Certification Exam Guide (Hardcover) ISBN-13: 9780071345347 ISBN-10: 0071345345 Genres: Computers & Technology, Reference ? 1997 - Visual Basic Certification Exam Guide [Bootcamp] (Hardcover) ISBN-13: 9780079136718 ISBN-10: 0079136710 Genre: Computers & Technology 1 |