APA (7th ed.) Zitazioa
GREATER LONDON ASSOCIATION FOR DISABLED PEOPLE. (1989). HOW MANY DISABLED PEOPLE ARE THERE IN LONDON? GREATER LONDON ASSOCIATION FOR DISABLED PEOPLE.
Chicago Style (17th ed.) Zitazioa
GREATER LONDON ASSOCIATION FOR DISABLED PEOPLE. HOW MANY DISABLED PEOPLE ARE THERE IN LONDON? Londres: GREATER LONDON ASSOCIATION FOR DISABLED PEOPLE, 1989.
MLA (9th ed.) Zitazioa
GREATER LONDON ASSOCIATION FOR DISABLED PEOPLE. HOW MANY DISABLED PEOPLE ARE THERE IN LONDON? GREATER LONDON ASSOCIATION FOR DISABLED PEOPLE, 1989.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.