Larson, J. L. (2001). Internal improvement: National public works and the promise of popular government in the early United States. University of North Carolina Press.
Lua i Stíl Chicago (17ú heag.)Larson, John Lauritz. Internal Improvement: National Public Works and the Promise of Popular Government in the Early United States. Chapel Hill: University of North Carolina Press, 2001.
Lua MLA (9ú heag.)Larson, John Lauritz. Internal Improvement: National Public Works and the Promise of Popular Government in the Early United States. University of North Carolina Press, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.