APA aipamena

ULLRICH, H. (2008). Rudolf Steiner. Bloomsbury.

Chicago Style aipamena

ULLRICH, Heiner. Rudolf Steiner. Bloomsbury, 2008.

MLA aipamena

ULLRICH, Heiner. Rudolf Steiner. Bloomsbury, 2008.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.