APA-ийн эшлэл(7 дахь хэвлэлт)

African Association of science. (1990). Directory of scholarly journals published in Africa: A preliminary survey. Academy Science.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

African Association of science. Directory of Scholarly Journals Published in Africa: A Preliminary Survey. Nairobi: Academy Science, 1990.

MLA -ийн эшлэл (9 дэх хэвлэлт)

African Association of science. Directory of Scholarly Journals Published in Africa: A Preliminary Survey. Academy Science, 1990.