00320nam a2200097 a 450000500170000000800410001705000220005824500370008050000880011765000170020520140414093834.0030610s19uu    xx            00    eng d  aCDR 050bNAT 1997  aNational geographic :bthe '20s.  a3 CD's inside January 1920-April 1923/May 1923-August 1926/Sept. 1926-December 1929  aPeriodicals.