Nichols, Eugene Douglas, 1923- Modern trigonometry / Eugene D. Nichols, E. Henry Garland - New York : Holt, Rinehart and Winston, c1968 - viii, 342 p. : ill. ; 25 cm. Includes index ISBN: USD 6.95 Subjects--Topical Terms: Plane trigonometryTrignometryTopology Dewey Class. No.: 514