Higher Education Student Association. (2004). Higher education in review. Higher Education Student Association.
Chicago Style aipamenaHigher Education Student Association. Higher Education in Review. University Park, PA: Higher Education Student Association, 2004.
MLA aipamenaHigher Education Student Association. Higher Education in Review. Higher Education Student Association, 2004.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.