Duane, W. J. (1811). Letters addressed to the people of Pennsylvania: Respecting the internal improvement, of the commonwealth; by means of roads and canals. Printed by J. Aitken.
Chicago-referens (17:e uppl.)Duane, William J. Letters Addressed to the People of Pennsylvania: Respecting the Internal Improvement, of the Commonwealth; by Means of Roads and Canals. Philadelphia: Printed by J. Aitken, 1811.
MLA-referens (8:e uppl.)Duane, William J. Letters Addressed to the People of Pennsylvania: Respecting the Internal Improvement, of the Commonwealth; by Means of Roads and Canals. Printed by J. Aitken, 1811.
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