TY  - BOOK
ED  - BRITANICA
TI  - Britanica learning library : technology and inventions
SN  - 1-59339-034-3
U1  - GR. 608 B862 2003 
PY  - 2003///
CY  - Chicago : 
PB  - Encyclopaedia Britanica, 
KW  - Inventions (Technology)
N1  - 1. Includes glossary
ER  -