APA-referens (7:e uppl.)

Carslaw, H. S. (1930). Plane trigonometry: An elementary text-book for the higher classes of secondary schools and for colleges (3a. ed.). Macmillan.

Chicago-referens (17:e uppl.)

Carslaw, H. S. Plane Trigonometry: An Elementary Text-book for the Higher Classes of Secondary Schools and for Colleges. 3a. ed. Londres: Macmillan, 1930.

MLA-referens (9:e uppl.)

Carslaw, H. S. Plane Trigonometry: An Elementary Text-book for the Higher Classes of Secondary Schools and for Colleges. 3a. ed. Macmillan, 1930.