TY  - BOOK
AU  - Habakkuk, H. J.
TI  - American and British technology in the nineteenth century: the search for labour-saving inventions
U1  - 609.08 
PY  - 1962///
CY  - Cambridge 
PB  - University Press
KW  - Technology - United States
KW  - Technology - Great Britan
KW  - Technology - History
ER  -