Knight, J., & Latrobe, B. H. (1838). Report upon the locomotive engines and the police and management of several of the principal rail roads in the northern and middle states: Being a sequel to the Report of the 8th of January, 1838 upon railway structures. Lucas & Deaver.

Knight, Jonathan, and Benj. H. Latrobe. Report upon the Locomotive Engines and the Police and Management of Several of the Principal Rail Roads in the Northern and Middle States: Being a Sequel to the Report of the 8th of January, 1838 upon Railway Structures. Baltimore: Lucas & Deaver, 1838.

Knight, Jonathan, and Benj. H. Latrobe. Report upon the Locomotive Engines and the Police and Management of Several of the Principal Rail Roads in the Northern and Middle States: Being a Sequel to the Report of the 8th of January, 1838 upon Railway Structures. Lucas & Deaver, 1838.