Cita APA (7a ed.)
Njau, B., Scholtens, R., & Kasali, O. (1990). Parasites of sheep at the International Livestock Centre for Africa Debre Berhan Station, Ethiopia. Elsevier.
Cita Chicago Style (17a ed.)
Njau, B.C, R.G Scholtens, y O.B Kasali. Parasites of Sheep at the International Livestock Centre for Africa Debre Berhan Station, Ethiopia. Elsevier, 1990.
Cita MLA (9a ed.)
Njau, B.C, et al. Parasites of Sheep at the International Livestock Centre for Africa Debre Berhan Station, Ethiopia. Elsevier, 1990.
Precaución: Estas citas no son 100% exactas.