Dressler, I. (1979). Library Service to Children of the Sorb Minority of the German Democratic Republic.
Citazione stile Chigago Style (17a edizione)Dressler, Irmgard. Library Service to Children of the Sorb Minority of the German Democratic Republic. 1979.
Citatione MLA (9a ed.)Dressler, Irmgard. Library Service to Children of the Sorb Minority of the German Democratic Republic. 1979.
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