APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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