Armfield, F. L. (2011). Eugene Kinckle Jones: The National Urban League and Black social work, 1910-40. University of Illinois Press.
Cita Chicago (17th ed.)Armfield, Felix L. Eugene Kinckle Jones: The National Urban League and Black Social Work, 1910-40. Urbana: University of Illinois Press, 2011.
Cita MLA (9th ed.)Armfield, Felix L. Eugene Kinckle Jones: The National Urban League and Black Social Work, 1910-40. University of Illinois Press, 2011.
Atenció: Aquestes cites poden no estar 100% correctes.