Derry, T. K. (1979). A history of Scandinavia: Norway, Sweden, Denmark, Finland and Iceland. George Allen & Unwin.
Citazione stile Chigago Style (17a edizione)Derry, Thomas Kingston. A History of Scandinavia: Norway, Sweden, Denmark, Finland and Iceland. London: George Allen & Unwin, 1979.
Citatione MLA (9a ed.)Derry, Thomas Kingston. A History of Scandinavia: Norway, Sweden, Denmark, Finland and Iceland. George Allen & Unwin, 1979.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.