Kaufman, Josh. <br/><br/>
First 20 hours :   How to learn anything ... fast / 
Josh Kaufman. 
 - London :   Portfolio,  2013. 
 - xi;268p.: 
<br/><br/><label>ISBN: </label>9780670921911 
<br/><br/><label>Dewey Class. No.: </label>153.15 KAU.F