TY  - BOOK
AU  - Derry, T K
AU  - Williams, Trevor I
TI  - A Short history of technology: from the earliest times to A.D. 1900
U1  - 609 21st
PY  - 1960///
CY  - London
PB  - Claredon Press
KW  - Technological innovations-History-to 1900 A.D
ER  -