Schlitt, D. M. (2011). Generosity and gratitude: A philosophical psalm. Peter Lang.
芝加哥风格引文Schlitt, Dale M. Generosity and Gratitude: A Philosophical Psalm. New York: Peter Lang, 2011.
MLA引文Schlitt, Dale M. Generosity and Gratitude: A Philosophical Psalm. Peter Lang, 2011.
警告：这些引文格式不一定是100％准确.