Strickland, W. (1826). Reports on canals, railways, roads, and other subjects, made to "The Pennsylvania Society for the Promotion of Internal Improvement.". H. C. Carey & I. Lea.
Chicago-referens (17:e uppl.)Strickland, William. Reports on Canals, Railways, Roads, and Other Subjects, Made to "The Pennsylvania Society for the Promotion of Internal Improvement.". Philadelphia: H. C. Carey & I. Lea, 1826.
MLA-referens (8:e uppl.)Strickland, William. Reports on Canals, Railways, Roads, and Other Subjects, Made to "The Pennsylvania Society for the Promotion of Internal Improvement.". H. C. Carey & I. Lea, 1826.
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