TY  - BOOK
AU  - Dugopolski,Mark
TI  - Precalculus: functions and graphs 
SN  - 032150111X (SE)
AV  - QA 39.3 .D8 2009
PY  - 2009///
CY  - Boston
PB  - Pearson Addison Wesley
KW  - Textbooks
KW  - Graphic methods
N1  - Includes index
ER  -