Wordstar professional release 4 :  what's new /  [Book]. 
Micropro International.  
 - San Rafael, C.A. :   Micropro International Corp.,   1979. 
 - xxvi, 363p. :  ill. ;  21 cm. 
<br/><br/> Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Word processing.<br/>Wordstar professional (Computer file).