APA (7th ed.) Zitazioa
(2015). The AARP age-friendly communities tool kit. AARP Livable Communities.
Chicago Style (17th ed.) Zitazioa
The AARP Age-friendly Communities Tool Kit. Washington: AARP Livable Communities, 2015.
MLA (9th ed.) Zitazioa
The AARP Age-friendly Communities Tool Kit. AARP Livable Communities, 2015.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.