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Greg Pahl, Biodiesel: Growing a New Energy Economy (White River Junction, VT: Chelsea Green Publishing, 2008).

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Ralph Harrington, ‘Trains, technology and time-travellers: how the Victorians re-invented time’, цит. по John Hassard, The Sociology of Time (Basingstoke: Palgrave Macmillan, 1990), р. 126.
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