Não informado. Publications of the International Health Board. Rockefeller Foundation.
Chicago-Zitierstil (17. Ausg.)Não informado. Publications of the International Health Board. New York: Rockefeller Foundation.
MLA-Zitierstil (8. Ausg.)Não informado. Publications of the International Health Board. Rockefeller Foundation.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.