33rd Executive Committee (6 September 1957)

Resoluciones de la 33.a Sesión del Comité Ejecutivo (CE33)

Organización Panamericana de la Salud (OPSUnited StatesWashington, D.C., 1957)
Resolutions of the 33rd Session of the Executive Committee (CE33)

Pan American Health Organization (PAHOUnited StatesWashington, D.C., 1957)
Final report

Pan American Sanitary Organization; World Health Organization (Washington, D.C; Pan American Sanitary Organization, 1957)
Informe final

Organización Sanitaria Panamericana; Organización Mundial de la Salud (Washington, D.C; Organización Sanitaria Panamericana, 1957)