Pritchard, D.C.  <br/><br/>
Lighting / 
D.C. Pritchard 
 - 6th ed. 
 - London:  Routledge,  2017. 
 - 265p.  [pb] 
<br/><br/><label>ISBN: </label>9781138628595 
<br/><br/><label>Dewey Class. No.: </label>621.32  / PRI-L