APA (7e ed.) Bronvermelding

Hoffmann, P. (2001). Tomorrow's energy: Hydrogen, fuel cells, and the prospects for a cleaner planet. MIT Press.

Chicago (17e ed.) Bronvermelding

Hoffmann, Peter. Tomorrow's Energy: Hydrogen, Fuel Cells, and the Prospects for a Cleaner Planet. Cambridge, MA: MIT Press, 2001.

MLA (9e ed.) Bronvermelding

Hoffmann, Peter. Tomorrow's Energy: Hydrogen, Fuel Cells, and the Prospects for a Cleaner Planet. MIT Press, 2001.