TY  - BOOK
AU  - Demana,Franklin D.
AU  - Waits,Bert K.
AU  - Clemens,Stanley R.
TI  - Precalculus mathematics: a graphing approach 
SN  - 0201529009
AV  - QA154.2 .D43 1992
U1  - 512 20
PY  - 1994///
CY  - Reading, Mass.
PB  - Addison-Wesley
KW  - Algebra
KW  - Trigonometry
N1  - Includes index
ER  -