Larsen, Glenn Harold. <br/><br/>
Mastering Harvard graphics / 
Glenn H. Larsen. 
 - San Francisco :  Sybex,  c1989. 
 - xxiv, 323 p. :  ill. 
<br/><br/> "For version 2.1, for new & experienced users, superb tutorial for graphing"--Cover. 
<br/><br/><label>ISBN: </label>0895885859 :  $24.95 
<br/><br/><label>LCCN: </label>90052040     
<br/><br/><label>Subjects--Uniform Titles: </label><br/>Harvard graphics (Computer program)