APA-referens (7:e uppl.)

Hill, F. E., & Williams, W. (1941). Radio's listening groups: The United States and Great Britain. Columbia University Press.

Chicago-referens (17:e uppl.)

Hill, Frank Ernest, och W.E Williams. Radio's Listening Groups: The United States and Great Britain. New York: Columbia University Press, 1941.

MLA-referens (8:e uppl.)

Hill, Frank Ernest, och W.E Williams. Radio's Listening Groups: The United States and Great Britain. Columbia University Press, 1941.