Heymann, F. G. (1966). Poland and Czecholovakia. New Jersey: Prentice-Hall.
Trích dẫn kiểu ChicagoHeymann, Frederick G. Poland and Czecholovakia. New Jersey: Prentice-Hall, 1966.
Deismireacht MLAHeymann, Frederick G. Poland and Czecholovakia. New Jersey: Prentice-Hall, 1966.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.