WILLIAM L. ALLEN EDITOR ETC NATIONAL GEOGRAPHIC OCTOBER 2002 - 初版 - NATIONAL GEOGRAPHIC SOCIETY 2002 - 平 - VOL.202 NO.4, 2002 . Subjects--Topical Terms: 连续性出版品; 期刊--NATIONAL GEOGRAPHIC Dewey Class. No.: 050.8 NG v.10 2002