APA-referens (7:e uppl.)

Southworth, G. V. D., & Kramer, S. E. (1922). Great cities of the United States: Historical, descriptive, commercial, industrial. Iroquois Pub. Co..

Chicago-referens (17:e uppl.)

Southworth, Gertrude Van Duyn, och Stephen Elliott Kramer. Great Cities of the United States: Historical, Descriptive, Commercial, Industrial. Syracuse, N.Y.: Iroquois Pub. Co., 1922.

MLA-referens (8:e uppl.)

Southworth, Gertrude Van Duyn, och Stephen Elliott Kramer. Great Cities of the United States: Historical, Descriptive, Commercial, Industrial. Iroquois Pub. Co., 1922.