TY  - BOOK
AU  - Larsen, Egon, 1904-
TI  - A history of inventions
SN  - 0460066048
AV  - T 15 Lar 
PY  - 1969///
CY  - London
PB  - J.M. Dent
KW  - INVENTIONS - HISTORY
KW  - TECHNOLOGY--HISTORY
ER  -