Grant, Robert <br/><br/>
The PCW logo manual / 
Robert Grant. 
 - Wilmslow, Cheshire :  Sigma Press,  c1992. 
 - vi, 252 p. 
<br/><br/> Includes appendices and index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logo (Computer program language)