Search for: [Subject and Keywords = fruit trees \- varieties] OR [Subject and Keywords = fruit trees \- hybridization] OR [Subject and Keywords = drzewa owocowe \- odmiany] OR [Subject and Keywords = drzewa owocowe \- hybrydyzacja] OR [Subject and Keywords = krzyżowanie drzew owocowych] OR [Title = Uszlachetnianie drzew owocowych \(dokończenie\)] OR [Creator = Ciesielski, Teofil]