Gillespie, W. M. (1847). A manual of the principles and practice of road-making: Comprising the location, construction, and improvement of roads (common, macadam, paved, plank, etc.) and railroads. A.S. Barnes & Co.
Chicago-Zitierstil (17. Ausg.)Gillespie, William Mitchell. A Manual of the Principles and Practice of Road-making: Comprising the Location, Construction, and Improvement of Roads (common, Macadam, Paved, Plank, Etc.) and Railroads. New York: A.S. Barnes & Co, 1847.
MLA-Zitierstil (9. Ausg.)Gillespie, William Mitchell. A Manual of the Principles and Practice of Road-making: Comprising the Location, Construction, and Improvement of Roads (common, Macadam, Paved, Plank, Etc.) and Railroads. A.S. Barnes & Co, 1847.
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