APA-referens (7:e uppl.)

Brooke, E. W. (1966). The challenge of change: Crisis in our two-party system. Little, Brown.

Chicago-referens (17:e uppl.)

Brooke, Edward William. The Challenge of Change: Crisis in Our Two-party System. Boston: Little, Brown, 1966.

MLA-referens (9:e uppl.)

Brooke, Edward William. The Challenge of Change: Crisis in Our Two-party System. Little, Brown, 1966.