Lua APA (7ú heag.)
ebrary, Inc, Gitterman, A., & Shulman, L. (2005). Mutual aid groups, vulnerable and resilient populations, and the life cycle (3rd ed.). Columbia University Press.
Lua i Stíl Chicago (17ú heag.)
ebrary, Inc, Alex Gitterman, agus Lawrence Shulman. Mutual Aid Groups, Vulnerable and Resilient Populations, and the Life Cycle. 3rd ed. New York: Columbia University Press, 2005.
Lua MLA (9ú heag.)
ebrary, Inc, et al. Mutual Aid Groups, Vulnerable and Resilient Populations, and the Life Cycle. 3rd ed. Columbia University Press, 2005.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.