Hacker, L. M., & Zahler, H. S. (1947). The shaping of the American tradition. Columbia University Press.
Lua i Stíl Chicago (17ú heag.)Hacker, Louis Morton, agus Helene Sara Zahler. The Shaping of the American Tradition. New York: Columbia University Press, 1947.
Lua MLA (9ú heag.)Hacker, Louis Morton, agus Helene Sara Zahler. The Shaping of the American Tradition. Columbia University Press, 1947.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.