X protocol reference manual : for version 11 of the X window system vol. zero 
ed. by Adrian Nye. 
 - Sebastopol  O'Reilly & Ass. Inc  1989 
 - xv, 398p. 
 - Definitive guides to the X window system.   .
<br/><br/><label>ISBN: </label>0937175404 
<br/><br/><label>Dewey Class. No.: </label>005.43  / N8921