Gray, S. (2018). Steam Power and Sea Power: Coal, the Royal Navy, and the British Empire, c. 1870-1914 (1st ed. 2018.). Palgrave Macmillan UK.
Citace podle Chicago (17th ed.)Gray, Steven. Steam Power and Sea Power: Coal, the Royal Navy, and the British Empire, C. 1870-1914. 1st ed. 2018. London: Palgrave Macmillan UK, 2018.
Citace podle MLA (9th ed.)Gray, Steven. Steam Power and Sea Power: Coal, the Royal Navy, and the British Empire, C. 1870-1914. 1st ed. 2018. Palgrave Macmillan UK, 2018.
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