APA (7th ed.) Zitazioa
Mason, R. (2003). Complete guide to debt recovery. Thorogood.
Chicago Style (17th ed.) Zitazioa
Mason, Roger. Complete Guide to Debt Recovery. London: Thorogood, 2003.
MLA (9th ed.) Zitazioa
Mason, Roger. Complete Guide to Debt Recovery. Thorogood, 2003.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.