TY  - BOOK
AU  - National Geographic Society
TI  - National geographic eyewitness to the 20th century
SN  - 0792270495
U1  - Ref. 909.82 N21 
PY  - 1998///
CY  - Washington, D.C.
PB  - The Society
KW  - History, Modern--20th century
KW  - History, modern--20th century--chronology
KW  - Twentieth century
ER  -