APA aipamena

Beetham, D. (1994). Defining and measuring democracy. Sage.

Chicago Style aipamena

Beetham, David. Defining and Measuring Democracy. London: Sage, 1994.

MLA aipamena

Beetham, David. Defining and Measuring Democracy. Sage, 1994.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.