TY  - BOOK
AU  - Bridgman,Roger
TI  - 1000 Inventions & discoveries
SN  - 1-4053-1419-2
U1  - Ref. 609 B852 
PY  - 0000///[?]
CY  - London
PB  - Dorling Kindersley Book
KW  - Inventions
KW  - History
N1  - Includes index
ER  -