TY  - BOOK
AU  - HARRIS,Nancy
TI  - Rourke's World Science Encyclopedia vol.9: Technology
SN  - 978-1-60044-655-9
U1  - 503. 
PY  - 2009///
CY  - Florida
PB  - Rourke
KW  - 0
KW  - Grade 7-9
ER  -