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Topic 11: report of the Director on the IX Meeting of the Directing Council and the 29th and 30th Meeting of the Executive Committee to be held at Antigua Guatemala, Guatemala, 11-29 September 1956
(Washington, D.C; Pan American Sanitary Organization, 1956-06)
Topic 6: rules of procedure of the Directing Council
(Washington, D.C; Pan American Sanitary Organization, 1956-06)