TY  - BOOK
AU  - Leithold,Louis
TI  - Trigonometry
SN  - 971110671X
PY  - 1989///
CY  - Quezon City
PB  - JMC Press
KW  - Trigonometry
N1  - Includes appendix and index
N2  - Excerpts from the author's College algebra and trigonometry
ER  -