Osborne, R. H. (1967). East-Central Europe: A Geographical introduction to seven socialist states. London: Chatto & Windus.
Trích dẫn kiểu ChicagoOsborne, R. H. East-Central Europe: A Geographical Introduction to Seven Socialist States. London: Chatto & Windus, 1967.
MLA citiranjeOsborne, R. H. East-Central Europe: A Geographical Introduction to Seven Socialist States. London: Chatto & Windus, 1967.
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