Trigonometry : an analytic approach - Drooyan, Irving. 4 0 16; Hadel, Walter.;Carico, Charles C.; 5 (New York :;London : Macmillan ;;Collier Macmillan, 1986)
Includes index.
Keywords: 2 -- 0; 6; Plane trigonometry. -- 20; 20; 2