TY  - BOOK
AU  - Foerster,Paul A.
TI  -  Trigonometry: functions and applications 
SN  - 0-201-20237-9
AV  - QA531 .L37 1984
PY  - 1984///
CY  - Menlo Park, Calif.
PB  - Addison-Wesley.
KW  - Algebra
KW  - Trigonometry
ER  -