Não informado. (2008). Organization, activities and results up to .. Rockefeller Commission for the Eradication of Hookworm Disease.
Citação do estilo Chicago (17ª ed.)Não informado. Organization, Activities and Results Up to .. Washington: Rockefeller Commission for the Eradication of Hookworm Disease, 2008.
Citação MLA (8ª ed.)Não informado. Organization, Activities and Results Up to .. Rockefeller Commission for the Eradication of Hookworm Disease, 2008.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.