Dickinson, H., & Vowles, H. (1943). James Watt and the industrial revolution. London: The British Council.
Lua i Stíl Chicago (17ú heag.)Dickinson, H.W, agus H.P Vowles. James Watt and the Industrial Revolution. London: The British Council, 1943.
Lua MLA (8ú heag.)Dickinson, H.W, agus H.P Vowles. James Watt and the Industrial Revolution. London: The British Council, 1943.
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