Search for: [Subject and Keywords = rolnictwo] OR [Subject and Keywords = rolnictwo \- aspekt ekonomiczny] OR [Subject and Keywords = Prusy \- 19 w.] OR [Subject and Keywords = Prusy] OR [Subject and Keywords = rolnictwo \- Dolny Śląsk] OR [Title = Arbeiten des Allgemeinen Landwirthschaftlichen Vereins im Kreise Oels. Jg. 1864]