Theory of linear systems / 
staff of Research and Education Association. 
 - New York, N.Y. :  Research and Education Association,  c1982. 
 - viii, 216 p. :  ill. ;  26 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0878915397 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>System analysis.<br/>Linear systems.