TY  - BOOK
AU  - Swokowski,Earl William
AU  - Cole,Jeffery A.
TI  - Precalculus: functions and graphs 
SN  - 9781305663091 (bookonly)
U1  - 515 
PY  - 2017///
CY  - USA
PB  - Cengage Learning
KW  - Functions
KW  - Algebra
KW  - Graphic methods
KW  - Trigonometry
N1  - Includes index
ER  -