TY  - BOOK
AU  - Barnett,Raymond A.
AU  - Ziegler,Michael R.
TI  - Precalculus: functions and graphs 
SN  - 0070049610, 9780070049611
AV  - QA331.3 .B11. 
PY  - 1993///
CY  - New York
PB  - McGraw-Hill
KW  -  
KW  - Functions
KW  - Algebra
KW  - Graphic methods
N1  - Includes index
ER  -