TY  - BOOK
AU  - Barnett, Raymond A
AU  - Ziegler, Michael R
AU  - Byleen, Karl
TI  - Precalculus: functions and graphs
SN  - 0072368713
U1  - 510 
PY  - 2001///
CY  - Boston
PB  - McGraw-Hill
KW  - Algebra-Graphic methods
KW  - Functions
ER  -