United States. Office of Education. (1931). Statistics of the Negro race. United States Department of the Interior, Office of Education, For sale by the Supt. of Docs., U.S. G.P.O..
Citação norma ChicagoUnited States. Office of Education. Statistics of the Negro Race. [Washington, D.C.: United States Department of the Interior, Office of Education, For sale by the Supt. of Docs., U.S. G.P.O., 1931.
Citação norma MLAUnited States. Office of Education. Statistics of the Negro Race. United States Department of the Interior, Office of Education, For sale by the Supt. of Docs., U.S. G.P.O., 1931.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.