Ayres, F. J. (1954). Schaum's outline of theory and problems of plane and spherical trigonometry. McGraw Hill.
Chicago Edition CitationAyres, Frank Junior. Schaum's Outline of Theory and Problems of Plane and Spherical Trigonometry. New York: McGraw Hill, 1954.
MLA Edition CitationAyres, Frank Junior. Schaum's Outline of Theory and Problems of Plane and Spherical Trigonometry. McGraw Hill, 1954.
Warning: These citations may not always be 100% accurate.