Schlesinger, A. M. (1973). The imperial presidency. Houghton Mifflin.
Cita Chicago (17th ed.)Schlesinger, Arthur M. The Imperial Presidency. Boston: Houghton Mifflin, 1973.
Cita MLA (9th ed.)Schlesinger, Arthur M. The Imperial Presidency. Houghton Mifflin, 1973.
Atenció: Aquestes cites poden no estar 100% correctes.