APA-referens (7:e uppl.)

Birkbeck, M. (1818). Letters from Illinois (2d ed.). Taylor and Hessey.

Chicago-referens (17:e uppl.)

Birkbeck, Morris. Letters from Illinois. 2d ed. London: Taylor and Hessey, 1818.

MLA-referens (8:e uppl.)

Birkbeck, Morris. Letters from Illinois. 2d ed. Taylor and Hessey, 1818.