Modern trigonometry William Wooton . . . [et al.] ; Albert E. Meder, Jr. (editor). - rev. ed. - Boston : Houghton Mifflin, c1969. - iv, 434, 16 p. ill. (part col.) 24 cm. - Houghton Mifflin modern mathematics series . Includes glossary, index. Subjects--Topical Terms: Trigonometry. Dewey Class. No.: 516.24 / MOD