Drooyan, Irving.
Essentials of trigonometry / Irving Drooyan, Walter Hadel, Charles C. Carico. - 4th ed. - New York : London : Macmillan ; Collier Macmillan, c1986. - xi, 367 p. : ill. (some col.) ; 25 cm.
Includes index.
0023305703
85005143
Plane trigonometry.
QA533 / .D74 1986
516.2/4
Essentials of trigonometry / Irving Drooyan, Walter Hadel, Charles C. Carico. - 4th ed. - New York : London : Macmillan ; Collier Macmillan, c1986. - xi, 367 p. : ill. (some col.) ; 25 cm.
Includes index.
0023305703
85005143
Plane trigonometry.
QA533 / .D74 1986
516.2/4