Richards, M. D. (2004). Revolutions in world history. London/New York: Routledge / Taylor & Francis Group.
Trích dẫn kiểu ChicagoRichards, Michael D. Revolutions in World History. London/New York: Routledge / Taylor & Francis Group, 2004.
Deismireacht MLARichards, Michael D. Revolutions in World History. London/New York: Routledge / Taylor & Francis Group, 2004.
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