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.
Atenció: Aquestes cites poden no estar 100% correctes.