McGurrin, J. (1972). Bourke Cockran: A free lance in American politics. Arno Press.
Lua i Stíl Chicago (17ú heag.)McGurrin, James. Bourke Cockran: A Free Lance in American Politics. New York: Arno Press, 1972.
Lua MLA (8ú heag.)McGurrin, James. Bourke Cockran: A Free Lance in American Politics. Arno Press, 1972.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.