Living On The Earth  -- Washington D. C.  The National Geographic Society  1988 <br/>320 p.:  ill  28cm <br/><br/> includes index <br/><br/><label>Subjects--Topical Terms: </label><br/>Living On The Earth<br/><br/><label>Dewey Class. No.: </label>HS Cir 304.219 L761 1988