ebrary, Inc, & Gasser, G. (2007). How successful is naturalism? Ontos Verlag.
芝加哥风格引文ebrary, Inc, 与 Georg Gasser. How Successful Is Naturalism? Frankfurt: Ontos Verlag, 2007.
MLA引文ebrary, Inc, 与 Georg Gasser. How Successful Is Naturalism? Ontos Verlag, 2007.
警告：这些引文格式不一定是100％准确.