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Topic 10: amendments to the Staff Rules of the Pan American Sanitary Bureau
(Washington, D.C; Pan American Sanitary Organization, 1957)
CE31.R14 : modificaciones al reglamento de personal de la OSPA
(Washington, D.C; Oficina Sanitaria Panamericana, 1957)
Tema 10: enmiendas al Reglamento del Personal de la Oficina Sanitaria Panamericana
(Washington, D.C; Organización Sanitaria Panamericana, 1957)
CE31.R13 : amendments to the staff rules of the PASB
(Washington, D.C; Pan American Sanitary Bureau, 1957)
Topic 10: amendments to the Staff Rules of the Pan American Sanitary Bureau
(Washington, D.C; Pan American Sanitary Organization, 1957)
CE31.R14 : amendments to the staff rules of the PASB
(Washington, D.C; Pan American Sanitary Bureau, 1957)