Schur, Lee David. <br/><br/>
Time shared computer languages  an introduction to conversational computing 
by Lee David Schur 
 - Massachusetts  Addison-Wesley  1973 
 - xiv, 561p.  incl. bibl., ind. 
<br/><br/><label>ISBN: </label>0201067617 
<br/><br/><label>LCCN: </label>72-577 
<br/><br/><label>Dewey Class. No.: </label>001.642  / N73