ACM National conference(21  1966) <br/><br/>
Proceedings of 21st National Conference   
by Association for computing machinery 
 - Washington  Thompson  1966 
 - 544p. 
 - A.C.M. Publication P-66 .
<br/><br/><label>LCCN: </label>64-25615 
<br/><br/><label>Dewey Class. No.: </label>001.64  / N668