Cita APA (7th ed.)

Hillstrom, L. C. (2009). The muckrakers and the Progressive Era. Omnigraphics, Inc..

Cita Chicago (17th ed.)

Hillstrom, Laurie Collier. The Muckrakers and the Progressive Era. Detroit, MI: Omnigraphics, Inc., 2009.

Cita MLA (9th ed.)

Hillstrom, Laurie Collier. The Muckrakers and the Progressive Era. Omnigraphics, Inc., 2009.