(1840). Compilation of the laws of Pennsylvania, relative to the internal improvements: Together with the canal and railway regulations, as established by the Board of canal commissioners. Harrisburg: Printed by Barrett and Parke.

Compilation of the Laws of Pennsylvania, Relative to the Internal Improvements: Together With the Canal and Railway Regulations, As Established By the Board of Canal Commissioners. Harrisburg: Printed by Barrett and Parke, 1840.

Compilation of the Laws of Pennsylvania, Relative to the Internal Improvements: Together With the Canal and Railway Regulations, As Established By the Board of Canal Commissioners. Harrisburg: Printed by Barrett and Parke, 1840.