Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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