How was it done? 

 - London  The Reader's Digest Association  1995 
 - 439 
<br/><br/><label>ISBN: </label>0276-42192-2 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Curiosities and wonders
<br/><br/><label>Dewey Class. No.: </label>R  030  H83