TY  - BOOK
AU  - Drooyan,Irving
AU  - Handel,Walter
AU  - Carico,Charles C.
TI  - Essentials of trigonometry
SN  - 0023302704
PY  - 1981///
CY  - New York
PB  - Macmillan
KW  - Trigonometry, Plane
N1  - Includes index; 'A portion of this material has been adapted from Trigonometry: an analytical approach.'
ER  -