Koller, Alois <br/><br/>
Work, power and efficiency - vol.11 

 - New Delhi  Wiley Eastern  1979 
 - 65p 
 - Programmed instruction .
<br/><br/> Reprint year 1993 
<br/><br/><label>ISBN: </label>81-224-0227-5 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electrical appliances<br/>Electrical engineering