APA (7th ed.) Zitazioa
ROGERS, R., & ET AL. DISABILITY-FREE LIFE AMONG THE ELDERLY IN THE UNITED STATES.
Chicago Style (17th ed.) Zitazioa
ROGERS, R.G, eta ET AL. DISABILITY-FREE LIFE AMONG THE ELDERLY IN THE UNITED STATES.
MLA (9th ed.) Zitazioa
ROGERS, R.G, eta ET AL. DISABILITY-FREE LIFE AMONG THE ELDERLY IN THE UNITED STATES.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.