APA aipamena

Pollard, S. (1968). The idea of progress: History and society. C. A. Watts.

Chicago Style aipamena

Pollard, Sidney. The Idea of Progress: History and Society. London: C. A. Watts, 1968.

MLA aipamena

Pollard, Sidney. The Idea of Progress: History and Society. C. A. Watts, 1968.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.