Ayres, F. (1999). Schaum's outline of theory and problems of trigonometry: With calculator-based solutions. McGraw-Hill.
Chicago-referens (17:e uppl.)Ayres, Frank. Schaum's Outline of Theory and Problems of Trigonometry: With Calculator-based Solutions. New York: McGraw-Hill, 1999.
MLA-referens (9:e uppl.)Ayres, Frank. Schaum's Outline of Theory and Problems of Trigonometry: With Calculator-based Solutions. McGraw-Hill, 1999.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.