TY  - BOOK
TI  - Time-life's illustrated world of Science : : Machines and Inventions 
SN  - 0783529627  
AV  - TJ1507 .T583 1994
PY  - 1994///.
CY  - Asia : 
PB  - Time Life, 
N2  - 1. Machines  2. Inventions
ER  -