Kerr, J. H. (1994). Understanding soccer hooliganism. Open University Press.
Chicago Style aipamenaKerr, John H. Understanding Soccer Hooliganism. Buckingham: Open University Press, 1994.
MLA aipamenaKerr, John H. Understanding Soccer Hooliganism. Open University Press, 1994.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.