Sobin, G. (2009). Ladder of shadows: Reflecting on medieval vestige in Provence and Languedoc. University of California Press.
芝加哥风格引文Sobin, Gustaf. Ladder of Shadows: Reflecting on Medieval Vestige in Provence and Languedoc. Berkeley: University of California Press, 2009.
MLA引文Sobin, Gustaf. Ladder of Shadows: Reflecting on Medieval Vestige in Provence and Languedoc. University of California Press, 2009.
警告：这些引文格式不一定是100％准确.