When where why and how it happened. 

 - London  The Reader's Digest Association Limited  1993. 
 - 448p.  col. ill.  28 cm 
 - Reader's Digest .
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>0276421051  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Technology--History
<br/><br/><label>Dewey Class. No.: </label>609 WHE 1993