Kagan, V. F. (1944). Lobachevskiĭ.
Chicago Style (17th ed.) CitationKagan, V. F. Lobachevskiĭ. Moskva, 1944.
MLA citiranjeKagan, V. F. Lobachevskiĭ. 1944.
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Kagan, V. F. (1944). Lobachevskiĭ.
Chicago Style (17th ed.) CitationKagan, V. F. Lobachevskiĭ. Moskva, 1944.
MLA citiranjeKagan, V. F. Lobachevskiĭ. 1944.