TY  - BOOK
AU  - David, Gould.
TI  - How was it done?
SN  - 0276421922
U1  - 609 
PY  - 1995///
CY  -  London
PB  - Reader's Digest Association Limited
KW  - Technological innovations History
KW  - Inventions History
KW  - Entdeckung
KW  - Geschichte
KW  - Erfindung
KW  - World history
KW  - Technology and civilization
KW  - Civilization
N1  - Bibliography details including index
ER  -