TY  - BOOK
AU  - Rau, Dana Meachen
TI  - Simple machines
T2  - True book
SN  - 9780531265864
AV  - 621.8 R19s c2012 
PY  - 2012///
CY  - New York
PB  - Children`s Press, an imprint of Scholastic, Inc.
KW  - Simple machines
KW  - Juvenile literature
N1  - Lex: 780
N2  - Examines ancient machines with timelines and photos, including how they have been used throughout history
ER  -