TY  - BOOK
AU  - Spilsbury,Louise
TI  - Inventions: Question and answers: the what, when, where, how and why of everything you need to know about inventions 
SN  - 9781407527062
U1  - R 608.7 S45i 2008 
PY  - 2008///
CY  - England
PB  - Parragon
KW  - Inventions
KW  - Discoveries in Science
KW  - History
N1  - Includes index
ER  -