Lua APA (7ú heag.)
Berking, H., & Camiller, P. (1999). Sociology of giving. Sage Publications Ltd..
Lua i Stíl Chicago (17ú heag.)
Berking, Helmuth, agus Patrick Camiller. Sociology of Giving. London ; Thousand Oaks, Calif.: Sage Publications Ltd., 1999.
Lua MLA (9ú heag.)
Berking, Helmuth, agus Patrick Camiller. Sociology of Giving. Sage Publications Ltd., 1999.
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