Olson, J. S. (1979). The ethnic dimension in American history. St. Martin's Press.
Lua i Stíl Chicago (17ú heag.)Olson, James Stuart. The Ethnic Dimension in American History. New York: St. Martin's Press, 1979.
Lua MLA (8ú heag.)Olson, James Stuart. The Ethnic Dimension in American History. St. Martin's Press, 1979.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.