Rolker, C. (2010). Canon law and the letters of Ivo of Chartres. Cambridge University Press. https://doi.org/10.1017/CBO9780511674709
芝加哥风格引文Rolker, Christof. Canon Law and the Letters of Ivo of Chartres. Cambridge: Cambridge University Press, 2010. https://doi.org/10.1017/CBO9780511674709.
MLA引文Rolker, Christof. Canon Law and the Letters of Ivo of Chartres. Cambridge University Press, 2010. https://doi.org/10.1017/CBO9780511674709.
警告：这些引文格式不一定是100％准确.