MacKenzie, Scott .I <br/><br/>
The 8051 Microcontroller 
I. Scott, MacKenzie 
 - 4th ed. 
 - New Dehli:  Pearson Education;  2009. 
 - 551 p. ; 
<br/><br/> paperback. 
<br/><br/> paper back 
<br/><br/><label>ISBN: </label>978-81-317-20189 
<br/><br/><label>Dewey Class. No.: </label>004.165  / MAC