APA način citiranja

Tchoumi, J. C. T., Ambassa, J. C., & Butera, G. (2009). Pregnancy follow-up in a patient with mechanical valve: Possible in sub-Saharan Africa? African Field Epidemiology Network.

Čikaški stil citiranja

Tchoumi, Jacques Cabral Tantchou, Jean Claude Ambassa, i Gianfranco Butera. Pregnancy Follow-up in a Patient With Mechanical Valve: Possible in Sub-Saharan Africa? African Field Epidemiology Network, 2009.

MLA način citiranja

Tchoumi, Jacques Cabral Tantchou, Jean Claude Ambassa, i Gianfranco Butera. Pregnancy Follow-up in a Patient With Mechanical Valve: Possible in Sub-Saharan Africa? African Field Epidemiology Network, 2009.