APA (7th ed.) Zitazioa
Age UK. (2011). Engaging with older people evidence review. Age UK.
Chicago Style (17th ed.) Zitazioa
Age UK. Engaging with Older People Evidence Review. Londres: Age UK, 2011.
MLA (9th ed.) Zitazioa
Age UK. Engaging with Older People Evidence Review. Age UK, 2011.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.