Sparber, G. (2009). Unorthodox Humeanism. Ontos Verlag.
芝加哥风格引文Sparber, Georg. Unorthodox Humeanism. Frankfurt ; New Brunswick: Ontos Verlag, 2009.
MLA引文Sparber, Georg. Unorthodox Humeanism. Ontos Verlag, 2009.
警告：这些引文格式不一定是100％准确.
APA引文