Analysis of farms business activities and its economic situation in the district Radzyń 19-25 Katarzyna Gajownik-Łazuga, Karol Łazuga pdf (Język Polski)
Characteristics of types and selected utilization problems of boilers and stoves fired by different fuels 27-40 Piotr Nakonieczny, Paweł Artur Kluza, Grzegorz Tatar, Ryszard Bródka pdf (Język Polski)
Sulphate corrosion as a real problem in a sewage network systems 41-48 Zuzanna Podraza pdf (Język Polski)