Berking, H., & Camiller, P. (1999). Sociology of giving. Sage Publications Ltd..
芝加哥风格引文Berking, Helmuth, 与 Patrick Camiller. Sociology of Giving. London ; Thousand Oaks, Calif.: Sage Publications Ltd., 1999.
MLA引文Berking, Helmuth, 与 Patrick Camiller. Sociology of Giving. Sage Publications Ltd., 1999.
警告：这些引文格式不一定是100％准确.