Bartels, C. (1997). Georg Winterschmidt's water pressure engines in the Upper Harz mining district, 1747 - 1763: Plans, experiments, problems, results.
Chicago Style (17th ed.) CitationBartels, Christoph. Georg Winterschmidt's Water Pressure Engines in the Upper Harz Mining District, 1747 - 1763: Plans, Experiments, Problems, Results. 1997.
MLA (9th ed.) CitationBartels, Christoph. Georg Winterschmidt's Water Pressure Engines in the Upper Harz Mining District, 1747 - 1763: Plans, Experiments, Problems, Results. 1997.
Warning: These citations may not always be 100% accurate.