Clampitt, C. (2015). Midwest maize: How corn shaped the U.S. heartland. University of Illinois Press.
Lua i Stíl Chicago (17ú heag.)Clampitt, Cynthia. Midwest Maize: How Corn Shaped the U.S. Heartland. Urbana, Illinois: University of Illinois Press, 2015.
Lua MLA (9ú heag.)Clampitt, Cynthia. Midwest Maize: How Corn Shaped the U.S. Heartland. University of Illinois Press, 2015.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.