TY  - BOOK
AU  - Barnett,Raymond A.
AU  - Ziegler,Michael R.
AU  - Byleen,Karl E.
TI  - Precalculus: functions and graphs 
SN  - 9780072867398
PY  - 0000///McGraw-Hill,
PY  - 2008///
CY  - Boston, MA
KW  - Functions
KW  - Textbooks
KW  - Algebra
KW  - Graphic methods
N1  - Instructions for creating your MathZone account: Go to www.mathzone.com using your web browser; Record your MathZone registration code: 3XBS-8G8J-UE9M-G0NC-PABE
ER  -