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

 - London:  The Pennsylvania State University Press,  1969. 
 - 174p.:  ill.;  24cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>System analysis
<br/><br/><label>LC Class. No.: </label>QA402.H3