APA-referens (7:e uppl.)

Levin, D. . a. . H. (1962). Varietes of english and american prose. Prentice-Hall.

Chicago-referens (17:e uppl.)

Levin, David and Hugo. Varietes of English and American Prose. New Jersey, Estados Unidos: Prentice-Hall, 1962.

MLA-referens (9:e uppl.)

Levin, David and Hugo. Varietes of English and American Prose. Prentice-Hall, 1962.