@Article{396820,
     author = "E. Nieznański",
     title = ""Logika formalna", Ludwik Borkowski, Warszawa 1970 : [recenzja]",
     year =  1972,
     volume =  8,
     number =  1,
     journal =  Studia Philosophiae Christianae,
     pages =  s. 246-253,
    }