Não informado. (2001). South African journal of medical sciences: Supplement. University of the Witwatersrand, Medical Graduate Association.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. South African Journal of Medical Sciences: Supplement. Johannesburg, Africa do Sul: University of the Witwatersrand, Medical Graduate Association, 2001.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. South African Journal of Medical Sciences: Supplement. University of the Witwatersrand, Medical Graduate Association, 2001.
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