Ayres, F. (1954). Theory & problems of Trigonemetry. Schaum Pub. Co.
Chicagoスタイル(17版)引用形式Ayres, Frank. Theory & Problems of Trigonemetry. New York: Schaum Pub. Co, 1954.
MLA(9版)引用形式Ayres, Frank. Theory & Problems of Trigonemetry. Schaum Pub. Co, 1954.
警告: この引用は必ずしも正確ではありません.