@Article{424331,
     author = "Krzysztof Sawicki",
     title = ""Juvenile delinquency : The core", L.J. Siegel, B.C. Welsh, Belmont 2011 : [recenzja]",
     year =  2014,
     volume =  7,
     number =  ,
     journal =  Resocjalizacja Polska (Polish Journal of Social Rehabilitation),
     pages =  s. 145-147,
    }