APA-referens (7:e uppl.)

Lang, A. (1990). The Progress of literature in the Nineteenth century. Anmol.

Chicago-referens (17:e uppl.)

Lang, Andrew. The Progress of Literature in the Nineteenth Century. New Delhi: Anmol, 1990.

MLA-referens (9:e uppl.)

Lang, Andrew. The Progress of Literature in the Nineteenth Century. Anmol, 1990.