TY  - BOOK
AU  - Cohen,David
AU  - Gunnip,Frank
TI  - Precalculus / :  
SN  - 0314606513
AV  - QA331.C6 1987 
PY  - 1987///
CY  - St Paul, N.Y
PB  - West Publishing
KW  - Functions
KW  - Trigonometry
KW  - Algebra
ER  -