Hellerman, Herbert <br/><br/>
Computer system performance 
Herbert Hellerman and Thomas F. Conroy. 
 - Tokyo  McGraw-Hill  1975 
 - xi, 380p. 
<br/><br/><label>ISBN: </label>0-07-027953-5 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computers<br/>NASA Thesaurus
<br/><br/><label>Universal Decimal Class. No.: </label>681.3  / HEL