TY  - ADVS
AU  - 
TI  - National geographic: the 1920s
U1  - CA-01 
PY  - 1888///-1999
CY  - 
PB  - National Geographic Society
N1  - Contents: Cd.1. January 1920 - April 1923 - Cd.2. May 1923 - August 1926 - Cd.3. September 1926 - December 1929
ER  -