Hoffmann, W., & Richardson, R. (2014). The economic competitiveness of renewable energy: Pathways to 100% global coverage. Scrivener Publishing : John Wiley & Sons.
Lua i Stíl Chicago (17ú heag.)Hoffmann, Winfried, agus Russell Richardson. The Economic Competitiveness of Renewable Energy: Pathways to 100% Global Coverage. Salem, Massachusetts ; Hoboken, New Jersey: Scrivener Publishing : John Wiley & Sons, 2014.
Lua MLA (9ú heag.)Hoffmann, Winfried, agus Russell Richardson. The Economic Competitiveness of Renewable Energy: Pathways to 100% Global Coverage. Scrivener Publishing : John Wiley & Sons, 2014.
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