ebrary, Inc, Gálvez, J. P., & Gaffal, M. (2012). Doubtful certainties: Language-games, forms of life, relativism. Ontos Verlag.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रebrary, Inc, Jesús Padilla Gálvez, और Margit Gaffal. Doubtful Certainties: Language-games, Forms of Life, Relativism. Frankfurt: Ontos Verlag, 2012.
एमएलए (9वां संस्करण) प्रशस्ति पत्रebrary, Inc, et al. Doubtful Certainties: Language-games, Forms of Life, Relativism. Ontos Verlag, 2012.
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