TY  - BOOK
AU  - Ross, Sharon
TI  - Precalculus: Algebra and Trigonometry 
SN  - 0534145507
U1  - 512.13 R73 
PY  - 1991///
CY  - USA
PB  - Brooks/Cole Publishing Company
N1  - CoED; Bachelor of Secondary Education major in Mathematics
ER  -