APA (7th ed.) Zitazioa
ROBERTS, A. (1987). A WARDEN'S GUIDE TO HEALTHCARE IN SHELTERED HOUSING. AGE CONCERN ENGLAND.
Chicago Style (17th ed.) Zitazioa
ROBERTS, A. A WARDEN'S GUIDE TO HEALTHCARE IN SHELTERED HOUSING. SURREY (UK): AGE CONCERN ENGLAND, 1987.
MLA (9th ed.) Zitazioa
ROBERTS, A. A WARDEN'S GUIDE TO HEALTHCARE IN SHELTERED HOUSING. AGE CONCERN ENGLAND, 1987.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.