Bohle, Hermann. <br/><br/>
Electrical photometry and illumination : 

 - 2nd ed. 
 - London :  Charles Griffin and company,   1925. 
 - xvi, 427 p. :  ill. ;  22 cm. 
<br/><br/> Includes index. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>The Art of Illumination <br/>Applied Illumination Engineering<br/>The IES Lighting Library Standards
<br/><br/><label>Dewey Class. No.: </label>621.32 BOH