APA-referens (7:e uppl.)

Thomson, D. (1950). England in the nineteenth century. Penguin Books.

Chicago-referens (17:e uppl.)

Thomson, David. England in the Nineteenth Century. Middlesex: Penguin Books, 1950.

MLA-referens (9:e uppl.)

Thomson, David. England in the Nineteenth Century. Penguin Books, 1950.