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Cita Chicago (17th ed.)United States. National Committee on Vital and Health Statistics i John Storck. Report of the Twentieth Anniversary Conference of the United States National Committee on Vital and Health Statistics. Rockville, Md., Washington]: U.S. Health Services and Mental Health Administration; [for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1970.
Cita MLA (8th ed.)United States. National Committee on Vital and Health Statistics i John Storck. Report of the Twentieth Anniversary Conference of the United States National Committee on Vital and Health Statistics. U.S. Health Services and Mental Health Administration; [for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1970.