Rorabaugh W.J & Critchlow, D. T. (1994). America!: Concise history. Wadsworth publishing company.
Lua i Stíl Chicago (17ú heag.)Rorabaugh W.J agus Donald T. Critchlow. America!: Concise History. California: Wadsworth publishing company, 1994.
Lua MLA (9ú heag.)Rorabaugh W.J agus Donald T. Critchlow. America!: Concise History. Wadsworth publishing company, 1994.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.