TY  - BOOK
AU  - Goodman,Arthur
AU  - Hirsch,Lewis
TI  - Precalculus: understanding functions : a graphing approach 
SN  - 0534386350
AV  - QA331.3  .G66 2004
PY  - 2004///
CY  - Belmont, CA
PB  - Brooks/Cole
KW  - Functions
ER  -