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When steam darkened the sail : some economic, geographic and public policy factors affecting the timing of conversion from sail to steam marine power
Klein, Frederick Robert, (1968)
The shift from sailing ships to steamships, 1850-1890 : a study in technological chanmge and its diffusion
Harley, Charles K., (1971)
Britain and the motorship : a case of the delayed adoption of new technology?
Henning, Graydon R., (1975)