TY  - BOOK
AU  - Becker,Helaine
AU  - Attoe,Steve
TI  - What's the big idea?: inventions that changed life on Earth forever 
SN  - 9781897349601 :
AV  - T48 .B42 2009
U1  - 609 22
PY  - 2009///
CY  - Toronto, Berkeley, Calif.
PB  - Maple Leaf Press, Distributed in the U.S. by Publishers Group West
KW  - Inventions
KW  - sears
KW  - Inventors
N1  - Includes index
N2  - Examines major inventions which had an impact on the world and can be credited to known inventors, from the printing press to the World Wide Web
ER  -