J. O. Bird & A. J. C. May <br/><br/>
Mathematics For Electrical Technicians 4/5 

 - 2nd ed 
 -   Longman Group Uk Limited  ©1994 
<br/><br/><label>ISBN: </label>9780582234215  120.55 
<br/><br/><label>Dewey Class. No.: </label>510.2462/BIR