Butler, J. S., & Herring, C. (1991). Ethnicity and entrepreneurship in America: Toward an explanation of racial and ethnic group variations in self-employment. [s.n.].
Chicago Style (17th ed.) CitationButler, John Sibley, and Cedric Herring. Ethnicity and Entrepreneurship in America: Toward an Explanation of Racial and Ethnic Group Variations in Self-employment. [S.l.]: [s.n.], 1991.
MLA (9th ed.) CitationButler, John Sibley, and Cedric Herring. Ethnicity and Entrepreneurship in America: Toward an Explanation of Racial and Ethnic Group Variations in Self-employment. [s.n.], 1991.
Warning: These citations may not always be 100% accurate.