Hofstadter, R., & Wallace, M. (1970). American violence: A documentary history. Vintage.
Lua i Stíl Chicago (17ú heag.)Hofstadter, Richard, agus Michael Wallace. American Violence: A Documentary History. New York: Vintage, 1970.
Lua MLA (9ú heag.)Hofstadter, Richard, agus Michael Wallace. American Violence: A Documentary History. Vintage, 1970.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.