Welford, Ross, <br/><br/>
What not to do if you turn invisible / 
Ross Welford. 
 - London :  HarperCollins,  2017. 
 - 404 p. 
<br/><br/><label>ISBN: </label>9780008156350 
<br/><br/><label>Source: </label>9780008156367  HarperCollins Publishers Ltd 
<br/><br/><label>Nat. Bib. No.: </label>GBB6D8295  bnb 
<br/><br/><label>Dewey Class. No.: </label>823.92