ebrary, Inc, Gitterman, A., & Shulman, L. (2005). Mutual aid groups, vulnerable and resilient populations, and the life cycle (3rd ed.). Columbia University Press.
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Chicago Style (17th ed.) Zitazioa
ebrary, Inc, Alex Gitterman, eta Lawrence Shulman. Mutual Aid Groups, Vulnerable and Resilient Populations, and the Life Cycle. 3rd ed. New York: Columbia University Press, 2005.
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MLA (9th ed.) Zitazioa
ebrary, Inc, et al. Mutual Aid Groups, Vulnerable and Resilient Populations, and the Life Cycle. 3rd ed. Columbia University Press, 2005.
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Kontuz: berrikusi erreferentzia hauek erabili aurretik.