Drooyan, Irving.
Essentials of trigonometry /
Irving Drooyan, Walter Hadel, Charles C. Carico.-
- 3d ed.-
- New York : Macmillan, c1981.
- viii, 328 p. : ill. ; 24 cm.
Includes index. "A portion of this material has been adapted from Trigonometry: an analytic approach."
0023302704
Plane trigonometry.
QA533 / D74 1981