ebrary, Inc, & De Groot, J. (2004). Nature in American philosophy. Catholic University of America Press.
芝加哥风格引文ebrary, Inc, 与 Jean De Groot. Nature in American Philosophy. Washington, D.C.: Catholic University of America Press, 2004.
MLA引文ebrary, Inc, 与 Jean De Groot. Nature in American Philosophy. Catholic University of America Press, 2004.
警告：这些引文格式不一定是100％准确.