Hammer, Preston C. <br/><br/>
Advances in mathematical systems theory 

 - University Park :  The Pennsylvanis State University Press,  1969 
 - 174 p.  ilus 
<br/><br/><label>Subjects--Topical Terms: </label><br/>INGENIERIA DE SISTEMAS<br/>ANÁLISIS DE SISTEMAS 
<br/><br/><label>Dewey Class. No.: </label>620.7  / H224