Hergert, Douglas <br/><br/>
Mastering visiCalc 
Douglas Hergert 
 - Berkeley  Sybex  1983 
 - xv, 217 p. ill. 23 cm 
<br/><br/>Includes index Bibliography: p. 213 
<br/><br/><label>Subjects--Topical Terms: </label><br/>VisiCalc (Computer program)