African Association of science. (1990). Directory of scholarly journals published in Africa: A preliminary survey. Academy Science.
芝加哥风格引文African Association of science. Directory of Scholarly Journals Published in Africa: A Preliminary Survey. Nairobi: Academy Science, 1990.
MLA引文African Association of science. Directory of Scholarly Journals Published in Africa: A Preliminary Survey. Academy Science, 1990.
警告：这些引文格式不一定是100％准确.