Johansson, I. (2004). Ontological investigations: An inquiry into the categories of nature, man and society. Ontos Verlag.
芝加哥风格引文Johansson, Ingvar. Ontological Investigations: An Inquiry into the Categories of Nature, Man and Society. Frankfurt: Ontos Verlag, 2004.
MLA引文Johansson, Ingvar. Ontological Investigations: An Inquiry into the Categories of Nature, Man and Society. Ontos Verlag, 2004.
警告：这些引文格式不一定是100％准确.