Cita APA (7th ed.)

Blum, J. M. (1980). The progressive Presidents: Roosevelt, Wilson, Roosevelt, Johnson. Norton.

Cita Chicago (17th ed.)

Blum, John Morton. The Progressive Presidents: Roosevelt, Wilson, Roosevelt, Johnson. New York: Norton, 1980.

Cita MLA (8th ed.)

Blum, John Morton. The Progressive Presidents: Roosevelt, Wilson, Roosevelt, Johnson. Norton, 1980.