ebrary, Inc, & Bertka, C. M. (2009). Exploring the origin, extent, and future of life: Philosophical, ethical, and theological perspectives. Cambridge University Press.
芝加哥风格引文ebrary, Inc, 与 Constance M. Bertka. Exploring the Origin, Extent, and Future of Life: Philosophical, Ethical, and Theological Perspectives. Cambridge: Cambridge University Press, 2009.
MLA引文ebrary, Inc, 与 Constance M. Bertka. Exploring the Origin, Extent, and Future of Life: Philosophical, Ethical, and Theological Perspectives. Cambridge University Press, 2009.
警告：这些引文格式不一定是100％准确.