Não informado. (1947). Chronicle of the World Health Organization. World Health Organization.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Chronicle of the World Health Organization. Geneve, Suíça: World Health Organization, 1947.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Chronicle of the World Health Organization. World Health Organization, 1947.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.