APA-referens (7:e uppl.)
Butler, J. S. (2005). Entrepreneurship and self-help among Black Americans: A reconsideration of race and economics (Rev. ed.). State University of New York Press.
Chicago-referens (17:e uppl.)
Butler, John S. Entrepreneurship and Self-help Among Black Americans: A Reconsideration of Race and Economics. Rev. ed. Albany: State University of New York Press, 2005.
MLA-referens (9:e uppl.)
Butler, John S. Entrepreneurship and Self-help Among Black Americans: A Reconsideration of Race and Economics. Rev. ed. State University of New York Press, 2005.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.