APA-viite (7. p.)
ebrary, Inc, Greif, G. L., & Ephross, P. H. (2005). Group work with populations at risk (2nd ed.). Oxford University Press.
Chicago-viite (17. p.)
ebrary, Inc, Geoffrey L. Greif, ja Paul H. Ephross. Group Work with Populations at Risk. 2nd ed. New York: Oxford University Press, 2005.
MLA-viite (9. p.)
ebrary, Inc, et al. Group Work with Populations at Risk. 2nd ed. Oxford University Press, 2005.
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