TY  - GEN
AU  - Sobal, Max A.
AU  - Lerner, Norbert
TI  - Algebra and trigonometry
SN  - 0130258830
U1  - 512.13 
PY  - 1991///
CY  - London
PB  - Prentice- Hall
KW  - ALGEBRA AND TRIGONOMETRY
ER  -