Lauck, J. (2000). American agriculture and the problem of monopoly: The political economy of grain belt farming, 1953-1980. University of Nebraska Press.
Lua i Stíl Chicago (17ú heag.)Lauck, Jon. American Agriculture and the Problem of Monopoly: The Political Economy of Grain Belt Farming, 1953-1980. Lincoln: University of Nebraska Press, 2000.
Lua MLA (9ú heag.)Lauck, Jon. American Agriculture and the Problem of Monopoly: The Political Economy of Grain Belt Farming, 1953-1980. University of Nebraska Press, 2000.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.