Loney, S. (1963). Plane trigonometry (6th.). Macmillan & Co. Ltd.
Chicago-čujuhus (17. p.)Loney, S. Plane Trigonometry. 6th. London: Macmillan & Co. Ltd, 1963.
MLA-čujuhus (9. p.)Loney, S. Plane Trigonometry. 6th. Macmillan & Co. Ltd, 1963.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.