TY  - ADVS
AU  - 
TI  - National geographic: the 1990s
U1  - CA-01 
PY  - 1888///-1999
CY  - 
PB  - National Geographic Society
N1  - Contents: Cd.1. January 1990 - June 1993 - Cd.2. July 1993 - December 1996 - Cd.3. January 1997 - December 1998 - Cd.4. 1999
ER  -