APA-čujuhus (7. p.)
Hoffmann, P. (2012). Tomorrow's energy: Hydrogen, fuel cells, and the prospects for a cleaner planet (Rev. and expanded ed.). MIT Press.
Chicago-čujuhus (17. p.)
Hoffmann, Peter. Tomorrow's Energy: Hydrogen, Fuel Cells, and the Prospects for a Cleaner Planet. Rev. and expanded ed. Cambridge, Mass.: MIT Press, 2012.
MLA-čujuhus (9. p.)
Hoffmann, Peter. Tomorrow's Energy: Hydrogen, Fuel Cells, and the Prospects for a Cleaner Planet. Rev. and expanded ed. MIT Press, 2012.
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