Loney, S. (1962). Plane trigonometry. Macmillan & Co. Ltd.
Cita Chicago (17th ed.)Loney, S. Plane Trigonometry. London: Macmillan & Co. Ltd, 1962.
Cita MLA (9th ed.)Loney, S. Plane Trigonometry. Macmillan & Co. Ltd, 1962.
Atenció: Aquestes cites poden no estar 100% correctes.