Kuncewiczowa, M. (1946). The keys: A journey through Europe at war. Hutchinson International Authors.
Citazione stile Chigago Style (17a edizione)Kuncewiczowa, Maria. The Keys: A Journey Through Europe at War. London: Hutchinson International Authors, 1946.
Citatione MLA (9a ed.)Kuncewiczowa, Maria. The Keys: A Journey Through Europe at War. Hutchinson International Authors, 1946.
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