Gurewich, Nathan <br/><br/>Teach yourself Visual Basic 4 in 21 days Nathan Gurewich , Ori Gurewich  - Third Edition  - Indianapolis, Indiana:  SAMS Publishing,  1995  - xxix, 895 pages;  21 cm. <br/><br/><label>ISBN: </label>9716560699 <br/><br/><label>LC Class. No.: </label>QA76.76  / V83G96 1995