Lauer, Henri. <br/><br/>
Servomechanism fundamentals, 
by Henri Lauer, Robert Lesnick and Leslie E. Matson ... 
 - 1st ed. 
 - New York,  London,  McGraw-Hill Book Company, inc.,  1947. 
 - xi, 277 p.  illus., diagrs.  24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>SERVOMECANISMOS
<br/><br/><label>Universal Decimal Class. No.: </label>681.58