Gruchy, J. d. (2011). The humanist imperative in South Africa. Academy of Science of South Africa.
芝加哥风格引文Gruchy, John de. The Humanist Imperative in South Africa. Academy of Science of South Africa, 2011.
MLA引文Gruchy, John de. The Humanist Imperative in South Africa. Academy of Science of South Africa, 2011.
警告：这些引文格式不一定是100％准确.