Cita APA (7a ed.)
Norval, R., Perry, B. D., Gebre-Ab, F., & Lessard, P. (1991). East Coast fever. A problem of the future for the horn of Africa? Elsevier.
Cita Chicago Style (17a ed.)
Norval, R.A.I, Brian D. Perry, F. Gebre-Ab, y P. Lessard. East Coast Fever. A Problem of the Future for the Horn of Africa? Elsevier, 1991.
Cita MLA (9a ed.)
Norval, R.A.I, et al. East Coast Fever. A Problem of the Future for the Horn of Africa? Elsevier, 1991.
Precaución: Estas citas no son 100% exactas.