TY  - BOOK
AU  - Ratti, J. S. 
AU  - McWaters, Marcus 
TI  -  Precalculus : :a unit circle approach
SN  - 9780321825391 (13)
U1  - 515 
PY  - 2014///
CY  - Boston
PB  - Pearson Education Inc,.
KW  -  Algebra
KW  - Algebra Textbooks
KW  - Functions
KW  - Precalculus
KW  - Trigonometry
ER  -