TY  - BOOK
AU  - Demana, franklin D., Bert K. Waits, Gregory D. Foley and Daniel Kennedy
TI  - Precalculus: Graphical, Numerical, Algebraic
SN  - 0-13-135962-2
AV  - QA 154.3 .P74 2009
PY  - 2010///
CY  - Boylston Street, Boston
PB  - Pearson Education
KW  - 1. Algebra---textbooks
KW  - 2. Trigonometry---textbooks
ER  -