APA引文
Barraclough, G. (1976). The Crucible of Europe: The Ninth and Tenth Centuries in European History. University of California Press.
芝加哥风格引文
Barraclough, Geoffrey. The Crucible of Europe: The Ninth and Tenth Centuries in European History. Berkeley: University of California Press, 1976.
MLA引文
Barraclough, Geoffrey. The Crucible of Europe: The Ninth and Tenth Centuries in European History. University of California Press, 1976.
警告：这些引文格式不一定是100％准确.