TY  - BOOK
AU  - Cleaver Frank L
AU  -  Williams Walter E
TI  - Precalculus algebra and trigonometry
U1  - B2, L1 
PY  - 1971///
CY  - NY
PB  - Holt Renechart and Winston       
KW  - Algebra
N1  - Appendix p 333-99
ER  -