TY  - BOOK
ED  - Salem Press.
TI  - Great events: 1900-2001 
SN  - 1587650614 (vol. 8 : alk. paper)
AV  - D421 .G7 2002
PY  - 2002///
CY  - Pasadena, California
PB  - Salem
KW  - Tecnología-Historia-Siglo XX
KW  - Ciencia-Historia-Siglo XX
KW  - Historia moderna-Siglo XX
KW  - History, Modern-Chronology-20th century
KW  - Science-Chronology-History-20th century
KW  - Technology-Chronology-History-20th century
ER  -