Betz, H. (1994). Radical Right-Wing Populism in Western Europe. Palgrave Macmillan US ; Palgrave Macmillan.
Lua i Stíl Chicago (17ú heag.)Betz, Hans-Georg. Radical Right-Wing Populism in Western Europe. New York: Palgrave Macmillan US ; Palgrave Macmillan, 1994.
Lua MLA (8ú heag.)Betz, Hans-Georg. Radical Right-Wing Populism in Western Europe. Palgrave Macmillan US ; Palgrave Macmillan, 1994.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.