Bryan, C. D. B <br/><br/>
The National Geographic Society:   100 Years of Adventure and Discovery 

 - New York   Abradale Press    1994 
 - 484 p. 
<br/><br/><label>ISBN: </label>0-810-98135-1. 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Geography--Research--Directories<br/> National geographic--Publishing<br/>Geography<br/>National Geographic Society (US)
<br/><br/><label>LC Class. No.: </label>G3.N37B79