TY  - BOOK
AU  - Edwards, Bruce H.
TI  - Precalculus functions and graphs: a graphing approach and precalculus with limits 
SN  - 0618074104
U1  - 515 EDW 
PY  - 2001///
CY  - New York
PB  - Houghton mifflin company
KW  -  Functions
KW  -  Algebra
KW  - Graphic methods
ER  -