APA (7th ed.) Zitazioa

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

Chicago Style (17th ed.) Zitazioa

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

MLA (9th ed.) Zitazioa

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