Essentials of trigonometry
Drooyan, Irving.
Hadel, Walter.
Carico, Charles C.(Charles Calvert)1920-
New York Macmillan London Collier Macmillan
1977
With answers to odd-numbered problems. - Text on lining papers
Previous ed.: New York : Macmillan, 1971
Includes index
Trigonometry.