Dynamics of VisiCalc / Barry D. Bayer, Joseph J. Sobel. Bayer, Barry D. Sobel, Joseph J. VisiCalc. QA76.6 .B399 1983 001.642 19 BAD Includes index. Homewood, Ill. : Dow Jones-Irwin, c1983. c1983. 1983 Text ix, 189 p. : eng