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Trích dẫn kiểu Chicago (xuất bản lần thứ 7)ebrary, Inc, Sonderforschungsbereich 227--Prävention und Intervention im Kindes- und Jugendalter. International Symposium, Günter Albrecht, và Hans-Uwe Otto. Social Prevention and the Social Sciences: Theoretical Controversies, Research Problems, and Evaluation Strategies. Berlin ; New York: Walter de Gruyter, 1991.
Trích dẫn kiểu MLA (xuất bản lần thứ 9)ebrary, Inc, et al. Social Prevention and the Social Sciences: Theoretical Controversies, Research Problems, and Evaluation Strategies. Walter de Gruyter, 1991.