Duchhardt, H. From the Peace of Westphalia to the Congress of Vienna: Heinz Duchhardt. The Oxford handbook of the history of international law.(2012).
Lua i Stíl Chicago (17ú heag.)Duchhardt, Heinz. "From the Peace of Westphalia to the Congress of Vienna: Heinz Duchhardt." The Oxford Handbook of the History of International Law.(2012) .
Lua MLA (8ú heag.)Duchhardt, Heinz. "From the Peace of Westphalia to the Congress of Vienna: Heinz Duchhardt." The Oxford Handbook of the History of International Law.(2012), .
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