Martin, S. (2014). The Cathars: The rise and fall of the great heresy. Pocket Essentials.
芝加哥风格引文Martin, Sean. The Cathars: The Rise and Fall of the Great Heresy. Herts, Alabama: Pocket Essentials, 2014.
MLA引文Martin, Sean. The Cathars: The Rise and Fall of the Great Heresy. Pocket Essentials, 2014.
警告：这些引文格式不一定是100％准确.