APA (7th ed.) Zitazioa
EKBERG, J. (2000). A STEP FORWARD. DESIGN FOR ALL. NATIONAL RESEARCH AND DEVELOPMENT CENTRE FOR WELFARE AND HEALTH.
Chicago Style (17th ed.) Zitazioa
EKBERG, J. A STEP FORWARD. DESIGN FOR ALL. HELSINKI: NATIONAL RESEARCH AND DEVELOPMENT CENTRE FOR WELFARE AND HEALTH, 2000.
MLA (9th ed.) Zitazioa
EKBERG, J. A STEP FORWARD. DESIGN FOR ALL. NATIONAL RESEARCH AND DEVELOPMENT CENTRE FOR WELFARE AND HEALTH, 2000.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.