ebrary, Inc, & Poli, R. (2010). Causality and motivation. Ontos Verlag.
芝加哥风格引文ebrary, Inc, 与 Roberto Poli. Causality and Motivation. Frankfurt ; New Brunswick: Ontos Verlag, 2010.
MLA引文ebrary, Inc, 与 Roberto Poli. Causality and Motivation. Ontos Verlag, 2010.
警告：这些引文格式不一定是100％准确.