Our world of change  Book 
Hugh R. Innis 
 - Toronto  McGraw-Hill  1969 
 - 112p.  ill., plates.  23cm 
<br/><br/> Index 
<br/><br/>Modern world 
<br/><br/><label>ISBN: </label>94946 
<br/><br/><label>Dewey Class. No.: </label>909.07