Halbach, V., & Horsten, L. (2004). Principles of truth (Second edition.). Ontos Verlag.
芝加哥风格引文Halbach, Volker, 与 Leon Horsten. Principles of Truth. Second edition. Frankfurt: Ontos Verlag, 2004.
MLA引文Halbach, Volker, 与 Leon Horsten. Principles of Truth. Second edition. Ontos Verlag, 2004.
警告：这些引文格式不一定是100％准确.