Willems, H. (1995). Development, Patterns and Causes of Violence against Foreigners in Germany: Social and Biographical Characteristics of Perpetrators and the Process of Escalation. Terror from the extreme right.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Willems, Helmut. "Development, Patterns and Causes of Violence Against Foreigners in Germany: Social and Biographical Characteristics of Perpetrators and the Process of Escalation." Terror from the Extreme Right 1995.
Trích dẫn kiểu MLA (xuất bản lần thứ 8)Willems, Helmut. "Development, Patterns and Causes of Violence Against Foreigners in Germany: Social and Biographical Characteristics of Perpetrators and the Process of Escalation." Terror from the Extreme Right, 1995.
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