TY  - BOOK
AU  - Lienhard, John H.
TI  - How inventions begins : : echoes of old voices in the rise of new machines 
SN  - 9780195305999
U1  - 609  1
PY  - 2006///
CY  - New York
PB  - Oxford University Press
KW  - Priority and apriority
KW  - Steam and speed
KW  - Writing and showing
ER  -