Hierarchical structures 

 - New York  American Elsevier Publishing Company, Inc.  1969 
 - xii, 322 p. 
<br/><br/> Symposium held at Douglas Advanced Research Laboratories. Huntington Beach, Calif., Nov. 18-19, 1968. 
<br/><br/><label>ISBN: </label>444000690 
<br/><br/><label>Subjects--Topical Terms: </label><br/>System analysis - Congresses<br/>Classification of science - Congresses
<br/><br/><label>Dewey Class. No.: </label>501.2