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.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLarson, 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.
एमएलए (9वां संस्करण) प्रशस्ति पत्रLarson, John Lauritz. Internal Improvement: National Public Works and the Promise of Popular Government in the Early United States. University of North Carolina Press, 2001.
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