Ubuntu Server Administration/  English. 
Michael Jang. 
 - New Delhi:  Tata McGraw-Hill Publishing Company Limited,  2009. 
 - xxi, 570p.:  ill;  24cm. 
<br/><br/><label>ISBN: </label>139780070142503 
<br/><br/><label>Dewey Class. No.: </label>681.142.2  / JAN