APA-referens

Ayres, F. J. (1954). Schaum's outline of theory and problems of plane and spherical trigonometry. McGraw Hill.

Chicago-stil citat

Ayres, Frank Junior. Schaum's Outline of Theory and Problems of Plane and Spherical Trigonometry. New York: McGraw Hill, 1954.

MLA-referens

Ayres, Frank Junior. Schaum's Outline of Theory and Problems of Plane and Spherical Trigonometry. McGraw Hill, 1954.

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