ebrary, Inc, Trampota, A., Sensen, O., & Timmermann, J. (2013). Kant's "Tugendlehre": A comprehensive commentary. De Gruyter.
芝加哥风格引文ebrary, Inc, Andreas Trampota, Oliver Sensen, 与 Jens Timmermann. Kant's "Tugendlehre": A Comprehensive Commentary. Berlin: De Gruyter, 2013.
MLA引文ebrary, Inc, et al. Kant's "Tugendlehre": A Comprehensive Commentary. De Gruyter, 2013.
警告：这些引文格式不一定是100％准确.