Cita APA (7a ed.)

Littlefield, R. E. (1992). William Randolph Hearst: His role in American progressivism. University Microfilms International.

Cita Chicago Style (17a ed.)

Littlefield, Roy Everett. William Randolph Hearst: His Role in American Progressivism. Ann Arbor: University Microfilms International, 1992.

Cita MLA (9a ed.)

Littlefield, Roy Everett. William Randolph Hearst: His Role in American Progressivism. University Microfilms International, 1992.