APA (7th ed.) Zitazioa
Senter, M. (1984). The art of recruiting volunteers. Victor Books.
Chicago Style (17th ed.) Zitazioa
Senter, Mark. The Art of Recruiting Volunteers. Illinois: Victor Books, 1984.
MLA (9th ed.) Zitazioa
Senter, Mark. The Art of Recruiting Volunteers. Victor Books, 1984.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.