Ryder, J. (1994). American philosophic naturalism in the twentieth century. Prometheus Books.
Chicago Style (17th ed.) CitationRyder, John. American Philosophic Naturalism in the Twentieth Century. Amherst, N.Y: Prometheus Books, 1994.
MLA引文Ryder, John. American Philosophic Naturalism in the Twentieth Century. Prometheus Books, 1994.
警告：這些引文格式不一定是100％准確.
