National Geographic : 1970 Aug
A CLOSER LOOK AT YOUR WORLD Every month NATIONAL GEOGRAPHIC brings you unique, stimulating close-ups of the world we live in. You probe the secrets of nature ... feel the excitement of discovery ...relive history. ... meet a fascinating variety of people. Share the adventure and knowledge of NATIONAL GEOGRAPHIC with your friends by nominating them for membership. Or, if you prefer, request gift memberships. Use the form on the third page of this magazine.