Heghin, M., & Thomas, F. O. (1938). Steps to citizenship: Preparing for naturalization and citizenship (Rev. and enl.). Works Progress Administration, Adult Education Project, University of Chicago.
Citace podle Chicago (17th ed.)Heghin, Mary, a Francis O. Thomas. Steps to Citizenship: Preparing for Naturalization and Citizenship. Rev. and enl. Chicago, IL: Works Progress Administration, Adult Education Project, University of Chicago, 1938.
Citace podle MLA (8th ed.)Heghin, Mary, a Francis O. Thomas. Steps to Citizenship: Preparing for Naturalization and Citizenship. Rev. and enl. Works Progress Administration, Adult Education Project, University of Chicago, 1938.
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