Warfel, William B. <br/><br/>
The New handbook of stage lighting graphics / 
William B. Warfel 
 - New York :  Drama Book Publishers,  cop.1990 
 - 112 p. :  il.;  28 cm 
<br/><br/> 792.022.3 WAR 
<br/><br/><label>ISBN: </label>0896761126 
<br/><br/><label>LCCN: </label>6685 
<br/><br/><label>Universal Decimal Class. No.: </label>792.022.3