Duffy, Ralph E. Introduction to programming with Visual Basic / Ralph Duffy. - Indianapolis, IN : Que E & T, c1995. - xxvii, 500 pages : illustrations ; 28 cm. Includes index. ISBN: 0789702479 Subjects--Uniform Titles: Visual Basic. Subjects--Topical Terms: BASIC (Computer program language). Dewey Class. No.: 005.265 DUF