ebrary, Inc, & Szatkowski, M. (2012). Ontological proofs today. Ontos Verlag.
Chicago Style (17th ed.) Citationebrary, Inc, and Mirosław Szatkowski. Ontological Proofs Today. Frankfurt ; New Brunswick: Ontos Verlag, 2012.
MLA引文ebrary, Inc, and Mirosław Szatkowski. Ontological Proofs Today. Ontos Verlag, 2012.
警告：這些引文格式不一定是100％准確.