TY  - BOOK
AU  - Whitaker,Herbert Coleman
TI  - Elements of trigonometry,
AV  - QA531 .W57
PY  - 1898///
CY  - Philadelphia
PB  - D. A. Partridge
KW  - Trigonometry
N1  - Also available in digital form on the Internet Archive Web site
UR  - http://hdl.loc.gov/loc.gdc/scd0001.00035605770
ER  -