Ayres, F., & Moyer, R. E. (1999). Schaum's outline of theory and problems of trigonometry: With calculator-based solutions (3rd ed.). McGraw-Hill.
Παραπομπή σε μορφή Chicago (17η εκδ.)Ayres, Frank, και Robert E. Moyer. Schaum's Outline of Theory and Problems of Trigonometry: With Calculator-based Solutions. 3rd ed. New York: McGraw-Hill, 1999.
Παραπομπή σε μορφή MLA (8th εκδ.)Ayres, Frank, και 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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