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1
Hungarian problem book I : based on the Eötvös Competitions, 1894-1905 /
Published 1963“…Problems and exercises fast…”
Full Text (via ProQuest)
eBook -
2
Hungarian problem book : based on the Eötvös competitions, 1906-1928 /
Published 1963“…Problems and exercises fast…”
Full Text (via ProQuest)
eBook