APA (7th ed.) Zitazioa
Royse, D. D. (2004). Research methods in social work (4th ed.). Thomson.
Chicago Style (17th ed.) Zitazioa
Royse, David D. Research Methods in Social Work. 4th ed. Chicago: Thomson, 2004.
MLA (9th ed.) Zitazioa
Royse, David D. Research Methods in Social Work. 4th ed. Thomson, 2004.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.