TY  - BOOK
AU  - Jacobs,Daniel
TI  - What does it do?: inventions then and now 
SN  - 0817235868 :
AV  - T48 .J23 1990
U1  - 609 20
PY  - 1990///
CY  - Milwaukee
PB  - Raintree Publishers
KW  - Inventions
KW  - Juvenile literature
N2  - Compares the appearance and use of common machines such as camera, clock, telephone, bicycle, auto, train, and plane with that of the models used long ago
UR  - http://www.archive.org/details/whatdoesitdoinve00jaco
UR  - http://www.openlibrary.org/books/OL1856080M
ER  -