APA aipamena

Ditchfield, C. (2004). FREEDOM OF SPEECH. Children's Press.

Chicago Style aipamena

Ditchfield, Christin. FREEDOM OF SPEECH. Children's Press, 2004.

MLA aipamena

Ditchfield, Christin. FREEDOM OF SPEECH. Children's Press, 2004.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.