TY  - BOOK
AU  - Larson,Ron
AU  - Heyd,David E.
AU  - Hostetler,Robert P.
TI  - Trigonometry
SN  - 0669086118
PY  - 1985///
CY  - Mass.
PB  - Heath
KW  - Trigonometry
N1  - Includes index
ER  -