Search for: [Subject and Keywords = Poznań \(Polska \; region\)] OR [Subject and Keywords = W. Decker i Spółka \(Poznań\)] OR [Subject and Keywords = dzienniki niemieckie 19 w.] OR [Subject and Keywords = czasopisma niemieckie 19 w.] OR [Title = Zeitung des Großherzogthums Posen. 1840, № 69 \(21 März\)]