Linux essentials / 
Bresnahan, Christine; Blum, Richard 
 - 2nd ed. 
 - Indiana :  John Wiley & Sons, Inc.,  2015. 
 - xvii, 342 p.: ill.; 23.3 cm. 
<br/><br/>Includes appendices and index 
<br/><br/><label>ISBN: </label>9781119092063 
<br/><br/><label>Dewey Class. No.: </label>C 005.446 B754 2015