APA-referens (7:e uppl.)

Hoffman, R. C. (1936). The romance of commerce. Little, Brown, and company.

Chicago-referens (17:e uppl.)

Hoffman, Ruth Christine. The Romance of Commerce. Boston: Little, Brown, and company, 1936.

MLA-referens (8:e uppl.)

Hoffman, Ruth Christine. The Romance of Commerce. Little, Brown, and company, 1936.