Etya'ale, D. (2008). Onchocerciasis and trachoma control: What has changed in the past two decades? International Centre for Eye Health.
Citação norma ChicagoEtya'ale, Daniel. Onchocerciasis and Trachoma Control: What Has Changed in the Past Two Decades? International Centre for Eye Health, 2008.
Citação norma MLAEtya'ale, Daniel. Onchocerciasis and Trachoma Control: What Has Changed in the Past Two Decades? International Centre for Eye Health, 2008.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.