Drooyan, Irving.
Essentials of trigonometry / Irving Drooyan, Walter Hadel, Charles C. Carico. - 2d ed. - New York : Macmillan, c1977. - viii, 328 p. : ill. ; 25 cm.
"A portion of this material has been adapted from Trigonometry: an analytical approach." Includes index.
0023302208
75030627
Plane trigonometry.
QA533 / .D74 1977
516.24 / D786e
Essentials of trigonometry / Irving Drooyan, Walter Hadel, Charles C. Carico. - 2d ed. - New York : Macmillan, c1977. - viii, 328 p. : ill. ; 25 cm.
"A portion of this material has been adapted from Trigonometry: an analytical approach." Includes index.
0023302208
75030627
Plane trigonometry.
QA533 / .D74 1977
516.24 / D786e