Não informado. (2004). Informe cuadrienal del director. Pan American Sanitary Bureau.
Chicago Style (17th ed.) CitationNão informado. Informe Cuadrienal Del Director. Washington: Pan American Sanitary Bureau, 2004.
MLA (8th ed.) CitationNão informado. Informe Cuadrienal Del Director. Pan American Sanitary Bureau, 2004.
Warning: These citations may not always be 100% accurate.