Nevis, A., & Commager, H. S. America the story of a free people (2a ed.).
Cita Chicago (17th ed.)Nevis, Allan, i Henry Steele Commager. America the Story of a Free People. 2a ed.
Cita MLA (8th ed.)Nevis, Allan, i Henry Steele Commager. America the Story of a Free People. 2a ed.
Atenció: Aquestes cites poden no estar 100% correctes.