TY  - BOOK
AU  - Cohen,David
TI  - Precalculus: a problems-oriented approach 
SN  - 0314262091 (hbk.)
PY  - 2003///
CY  - St Paul
PB  - West publishing
KW  - Precalculus
N1  - Includes index; Incuding bibliographical references
ER  -