Citazione Stile APA (7a Edizione)
Barraclough, G. (1976). The Crucible of Europe: The Ninth and Tenth Centuries in European History. University of California Press.
Citazione stile Chigago Style (17a edizione)
Barraclough, Geoffrey. The Crucible of Europe: The Ninth and Tenth Centuries in European History. Berkeley: University of California Press, 1976.
Citatione MLA (9a ed.)
Barraclough, Geoffrey. The Crucible of Europe: The Ninth and Tenth Centuries in European History. University of California Press, 1976.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.