Ayres, F., & Moyer, R. E. (1999). Schaum's outline of theory and problems of trigonometry: With calculator-based solutions (3rd ed.). McGraw-Hill.
Chicago-viite (17. p.)Ayres, Frank, ja Robert E. Moyer. Schaum's Outline of Theory and Problems of Trigonometry: With Calculator-based Solutions. 3rd ed. New York: McGraw-Hill, 1999.
MLA-viite (9. p.)Ayres, Frank, ja Robert E. Moyer. Schaum's Outline of Theory and Problems of Trigonometry: With Calculator-based Solutions. 3rd ed. McGraw-Hill, 1999.
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