Bryan, Courtlandt The national geographic society : 100 years of adventure and discovery / Courtlandt Dixon Barness Bryan. - New York : Harrap Publishing , 1994. - 484p. : ill. ; 30 X 25cm . ISBN: 0810981351 NULL Subjects--Index Terms: NATIONAL GEOGRAPHIC SOCIETY(U.S.) Dewey Class. No.: 910.6 / BRY/N