Rickey, Frank A. Plane trigonometry [electronic resource] / [by] Frank A. Rickey and J.P. Cole.. — New York, : Dryden Press, [1958]. — 260 p. : illus. 23 cm. — (The Dryden Presspublications in mathematics). LCCN: 58006529 Subjects--Topical Terms: Plane trigonometry. LC Class. No.: QA533 / .R517 Dewey Class. No.: 514.5