Weltgesundheitsorganisation. (1959). Public health papers. WHO.
Cita Chicago Style (17a ed.)Weltgesundheitsorganisation. Public Health Papers. Geneva: WHO, 1959.
Cita MLA (8a ed.)Weltgesundheitsorganisation. Public Health Papers. WHO, 1959.
Precaución: Estas citas no son 100% exactas.