Yang, Gene Luen. <br/><br/>
Secret Coders: Secrets & Sequences  / 
Gene Luen Yang, Mike Holmes (illus). 
 - 1st edition. 
 - pages cm 
 - Secret coders .
<br/><br/><label>ISBN: </label>9781626720770 (pbk.) 9781626726185 (hardcover) 
<br/><br/><label>LCCN: </label>2016938729