APA (7th ed.) Zitazioa
ebrary, Inc, Greif, G. L., & Ephross, P. H. (2005). Group work with populations at risk (2nd ed.). Oxford University Press.
Chicago Style (17th ed.) Zitazioa
ebrary, Inc, Geoffrey L. Greif, eta Paul H. Ephross. Group Work with Populations at Risk. 2nd ed. New York: Oxford University Press, 2005.
MLA (9th ed.) Zitazioa
ebrary, Inc, et al. Group Work with Populations at Risk. 2nd ed. Oxford University Press, 2005.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.