Kells, L. M. n. 1., Bland, J. R., & Kern, W. F. (1951). Plane and spherical trigonometry (3. edition.). New York, New York: McGraw-Hill.
Chicago Style CitationKells, Lyman Morse n. 1888, James R. Bland, and Willis F. Kern. Plane and Spherical Trigonometry. 3. edition. New York, New York: McGraw-Hill, 1951.
MLA CitationKells, Lyman Morse n. 1888, James R. Bland, and Willis F. Kern. Plane and Spherical Trigonometry. 3. edition. New York, New York: McGraw-Hill, 1951.
Warning: These citations may not always be 100% accurate.