TY  - BOOK
AU  - Barnett, Raymond A.
AU  - Byleen, Karl E.
AU  - Ziegler, Michael R.
TI  - Precalculus: functions and graphs
U1  - 512.1 
PY  - 2001///
CY  - Boston
PB  - McGraw-hill
KW  - Mathematics;Algebra;Graphic method
ER  -