Wierzbicki, A. (1921). The truth about Upper Silesia: A speech made in the Polish Diet on january 28th 1921 by deputy A. Wierzbicki : a resolution was passed by the Diet to publish this speech at the expense of the nation. Diet of the Polish Republic.
Cita Chicago Style (17a ed.)Wierzbicki, Andrzej. The Truth About Upper Silesia: A Speech Made in the Polish Diet on January 28th 1921 by Deputy A. Wierzbicki : A Resolution Was Passed by the Diet to Publish This Speech at the Expense of the Nation. Warsaw: Diet of the Polish Republic, 1921.
Cita MLA (9a ed.)Wierzbicki, Andrzej. The Truth About Upper Silesia: A Speech Made in the Polish Diet on January 28th 1921 by Deputy A. Wierzbicki : A Resolution Was Passed by the Diet to Publish This Speech at the Expense of the Nation. Diet of the Polish Republic, 1921.