TY  - BOOK
AU  - 
TI  - Precalculus: Concepts through functions A right triangle approach to trigonometry
SN  - 0-13-228066-3
U1  - 515.1 SUL 
PY  - 2007///
CY  - New jersey
PB  - Pearson
KW  - PRECALCULUS
N1  - Includes: index
ER  -