TY  - BOOK
AU  - Demana, Franklin
TI  - PreCalculas: a graphing approach 
SN  - 201870126
U1  - 512.13 DEM 
PY  - 1997///
CY  - New York
PB  - Mc Graw HIll
KW  - Humanities & Natural Science
KW  - Mathematics
N1  - Includes Index
ER  -