APA (7th ed.) Zitazioa

Various. Charities and the Commons: The Pittsburgh Survey, Part I. The People.

Chicago Style (17th ed.) Zitazioa

Various. Charities and the Commons: The Pittsburgh Survey, Part I. The People.

MLA (9th ed.) Zitazioa

Various. Charities and the Commons: The Pittsburgh Survey, Part I. The People.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.