TY  - ADVS
AU  - 
TI  - National geographic: the 1930s
U1  - CA-01 
PY  - 1888///-1999
CY  - 
PB  - National Geographic Society
N1  - Contents: Cd.1. January 1930 - April 1933 - Cd.2. May 1933 - August 1936 - Cd.3. September 1936 - December 1939
ER  -