APA aipamena

Frieling, R. The art of participation: 1950 to now.

Chicago Style aipamena

Frieling, Rudolf. The Art of Participation: 1950 to Now.

MLA aipamena

Frieling, Rudolf. The Art of Participation: 1950 to Now.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.