APA-referens (7:e uppl.)

Williams, M. H. (1928). Investment trusts in America. Macmillan CO.

Chicago-referens (17:e uppl.)

Williams, Marshall Henry. Investment Trusts in America. New York: Macmillan CO, 1928.

MLA-referens (9:e uppl.)

Williams, Marshall Henry. Investment Trusts in America. Macmillan CO, 1928.