Ball, G. W. I. (1875). General railroad laws of the State of Pennsylvania: And acts relative to corporations affecting railroad companies. Arranged in chronological order, from 1820 to 1874, with a complete analytical index. Philadelphia: Allen, Lane & Scott.

Ball, George W. I. General Railroad Laws of the State of Pennsylvania: And Acts Relative to Corporations Affecting Railroad Companies. Arranged in Chronological Order, From 1820 to 1874, With a Complete Analytical Index. Philadelphia: Allen, Lane & Scott, 1875.

Ball, George W. I. General Railroad Laws of the State of Pennsylvania: And Acts Relative to Corporations Affecting Railroad Companies. Arranged in Chronological Order, From 1820 to 1874, With a Complete Analytical Index. Philadelphia: Allen, Lane & Scott, 1875.