Plane and spherical trigonometry - Kells, Lyman Morse n. 1888; Bland, James R.; Kern, Willis F. (New York, New York : McGraw-Hill, 1951)
Encuadernado con: Kells, Lyman M. Five, place logarithmic and trigonometric tables. New York, McGraw-Hill, 1935.
Keywords: TRIGONOMETRIA