TY  - BOOK
AU  - Coburn,John W.
AU  - Herdlick,John D.
TI  - Precalculus: graphs and models 
SN  - 9780073519531 (hard copy : alk. paper)
PY  - 2012///
CY  - New York, NY.
PB  - McGraw-Hill
KW  - Functions
KW  - Graphic methods
KW  - Textbooks
KW  - Trigonometry
N1  - Includes index
ER  -