Pender Harold Ed. <br/><br/>
Electrical engineers' handbook. 

 - 4 
 - New York     John Wiley       1949 
<br/><br/><label>Standard No.: </label>38263 
<br/><br/><label>Source: </label> Reference Collections 
<br/><br/><label>Dewey Class. No.: </label>D66g, H9      RR