00929cam a2200289 i 4500 2690102 BD-DhUL 20140901162216.0 750913s1977 nyua 001 0 eng 75030627 0023302208 DLC DLC DLC BD-DhUL QA533 .D74 1977 516.24 D786e Drooyan, Irving. Essentials of trigonometry / Irving Drooyan, Walter Hadel, Charles C. Carico. 2d ed. New York : Macmillan, c1977. viii, 328 p. : ill. ; 25 cm. "A portion of this material has been adapted from Trigonometry: an analytical approach." Includes index. Plane trigonometry. Hadel, Walter, joint author. Carico, Charles C., joint author. 7 cbc orignew 1 ocip 19 y-gencatlg ddc BK 7036 7036 0 0 ddc 0 516_240000000000000_D786E 0 NFIC 12153 DUSL DUSL GEN 2014-09-01 Donation 516.24 D786e 305295 2014-09-01 2014-09-01 BK