Hallowell, J. (1963). Main currents in modern political thought. Holt Rinchant and Winstom.
Lua i Stíl Chicago (17ú heag.)Hallowell, J. Main Currents in Modern Political Thought. New York: Holt Rinchant and Winstom, 1963.
Lua MLA (9ú heag.)Hallowell, J. Main Currents in Modern Political Thought. Holt Rinchant and Winstom, 1963.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.