APA (7th ed.) Zitazioa
CHECKOWAY, B. (1994). EMPOWERING THE ELDERLY: GERONTOLOGICAL HEALTH PROMOTION IN LATIN AMERICA.
Chicago Style (17th ed.) Zitazioa
CHECKOWAY, B. EMPOWERING THE ELDERLY: GERONTOLOGICAL HEALTH PROMOTION IN LATIN AMERICA. 1994.
MLA (9th ed.) Zitazioa
CHECKOWAY, B. EMPOWERING THE ELDERLY: GERONTOLOGICAL HEALTH PROMOTION IN LATIN AMERICA. 1994.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.