00744cam a22002411 4500 ca 28000926 DLC 20260227111120.0 880526s1928 ctu 000 0 eng ca 28000926 (OCoLC)18006817 DLC DNIE DLC premarc QA537 .L6 Longley, William Raymond, 1880-1965. Twelve lessons in trigonometry [by] Longley and Wilson. New Haven, Conn., Whitlock's book store, inc. [c1928] 48 p. 23 cm. Cover title. At head of title: Yale University, the freshman year. Trigonometry Problems, exercises, etc. Wilson, Wallace Alvin. 16447 16447