ebrary, Inc, Classen, A., & Sandidge, M. (2010). Friendship in the Middle Ages and early modern age: Explorations of a fundamental ethical discourse. Walter de Gruyter.
Chicago Style (17th ed.) Citationebrary, Inc, Albrecht Classen, and Marilyn Sandidge. Friendship in the Middle Ages and Early Modern Age: Explorations of a Fundamental Ethical Discourse. Berlin ; New York: Walter de Gruyter, 2010.
MLA引文ebrary, Inc, et al. Friendship in the Middle Ages and Early Modern Age: Explorations of a Fundamental Ethical Discourse. Walter de Gruyter, 2010.
警告:這些引文格式不一定是100%准確.