Cita APA (7a ed.)

Gallup, G. H., & Rae, S. F. (1940). The pulse of democracy: The public-opinion poll and how it works. Simon and Schuster.

Cita Chicago Style (17a ed.)

Gallup, George Horace, y Saul Forbes Rae. The Pulse of Democracy: The Public-opinion Poll and How It Works. New York: Simon and Schuster, 1940.

Cita MLA (9a ed.)

Gallup, George Horace, y Saul Forbes Rae. The Pulse of Democracy: The Public-opinion Poll and How It Works. Simon and Schuster, 1940.