APA (7th ed.) Zitazioa
ebrary, Inc, Gitterman, A., & Shulman, L. (2005). Mutual aid groups, vulnerable and resilient populations, and the life cycle (3rd ed.). Columbia University Press.
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.
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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