TY  - BOOK
TI  - Machines and inventions
T2  - (Illustrated Encyclopedia of Science and Nature)
SN  - 0-7835-2962-7
U1  - Ref. 621.803 M149 1994 
PY  - 1994///
CY  - Virginia, U.S.A.
PB  - Time-Life Asia
KW  - Machine engineering
KW  - Encyclopedias and dictionaries
KW  - Inventions
N1  - Includes glossary
ER  -