Duffy, J. 1., & Soper, F. L. 1. (1977). Ventures in world health: The memoirs of Fred Lowe Soper. Washington, D.C.: Pan American Health Organization. Pan American Sanitary Bureau, Regional Office.
Citación estilo ChicagoDuffy, John 1915-, y Fred Lowe 1893-1977 Soper. Ventures in World Health: The Memoirs of Fred Lowe Soper. Washington, D.C.: Pan American Health Organization. Pan American Sanitary Bureau, Regional Office, 1977.
Cita MLADuffy, John 1915-, y Fred Lowe 1893-1977 Soper. Ventures in World Health: The Memoirs of Fred Lowe Soper. Washington, D.C.: Pan American Health Organization. Pan American Sanitary Bureau, Regional Office, 1977.
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