APA (7th ed.) Zitazioa
Ball, M. S. (2012). Livable communities for an aging population: Urban design solutions for longevity. John Wiley & Sons.
Chicago Style (17th ed.) Zitazioa
Ball, M. Scott. Livable Communities for an Aging Population: Urban Design Solutions for Longevity. Hoboken, N.J.: John Wiley & Sons, 2012.
MLA (9th ed.) Zitazioa
Ball, M. Scott. Livable Communities for an Aging Population: Urban Design Solutions for Longevity. John Wiley & Sons, 2012.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.