Scheifler, R. W. <br/><br/>
X window system: The complete reference to Xlib, X protocol, ICCCM, XFLD., X version 11, release 4 

 - New Delhi  Prentice Hall of India  1991 
 - xxiv, 851p. 
<br/><br/><label>ISBN: </label>0-87692-683-9