Wolf, S. (2013). Guarded neutrality: Diplomacy and internment in the Netherlands during the First World War. Brill.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)Wolf, Susanne. Guarded Neutrality: Diplomacy and Internment in the Netherlands During the First World War. Boston: Brill, 2013.
MLA -ийн эшлэл (9 дэх хэвлэлт)Wolf, Susanne. Guarded Neutrality: Diplomacy and Internment in the Netherlands During the First World War. Brill, 2013.
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