ebrary, Inc, & Szatkowski, M. (2012). Ontological proofs today. Ontos Verlag.
芝加哥风格引文ebrary, Inc, 与 Mirosław Szatkowski. Ontological Proofs Today. Frankfurt ; New Brunswick: Ontos Verlag, 2012.
MLA引文ebrary, Inc, 与 Mirosław Szatkowski. Ontological Proofs Today. Ontos Verlag, 2012.
警告：这些引文格式不一定是100％准确.