TY  - GEN
AU  - Cummings,Karen
AU  - Laws,Priscilla W.
AU  - Redish,Edward F.
AU  - Cooney,Patrick J.
TI  - Understanding physics,
SN  - 0471464406
U1  - 530 
PY  - 2004///
CY  - [S.l.]
PB  - Wiley
ER  -