Druzhinin, G.V. <br/><br/>
Time relays/ 
G.V. Druzhnin; translated by John Yeoman; translation edited by T.S.E. Thomas 
 - Oxford:  Pergamon Press,  c1961 
 - viii, 80 p.:  ill.;  22 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label> Rs. 18.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Automation<br/>Automatic control<br/>Control theory<br/>System control
<br/><br/><label>Dewey Class. No.: </label>621.81