APA-referens (7:e uppl.)

Teggart, F. J. (1949). The idea of progress: A collection of readings (rev. ed.). University of California Press.

Chicago-referens (17:e uppl.)

Teggart, Frederick John. The Idea of Progress: A Collection of Readings. rev. ed. Berkeley: University of California Press, 1949.

MLA-referens (9:e uppl.)

Teggart, Frederick John. The Idea of Progress: A Collection of Readings. rev. ed. University of California Press, 1949.