Tocci, Ronald J. <br/><br/>
Digital Systems :  Principles and Applications  
Ronald J. Tocci, Neal S. Widmer. 
 - Eighth  
 - Upper Saddle River, N.J. :  Prentice Hall,  c2001. 
 - xxvi, 881 p. :  ill. ;  26 cm. +  1 computer laser optical disc (4 3/4 in.)