Hoffmann, W., & Richardson, R. (2014). The economic competitiveness of renewable energy: Pathways to 100% global coverage. Scrivener Publishing : John Wiley & Sons.
Παραπομπή σε μορφή Chicago (17η εκδ.)Hoffmann, Winfried, και Russell Richardson. The Economic Competitiveness of Renewable Energy: Pathways to 100% Global Coverage. Salem, Massachusetts ; Hoboken, New Jersey: Scrivener Publishing : John Wiley & Sons, 2014.
Παραπομπή σε μορφή MLA (9th εκδ.)Hoffmann, Winfried, και Russell Richardson. The Economic Competitiveness of Renewable Energy: Pathways to 100% Global Coverage. Scrivener Publishing : John Wiley & Sons, 2014.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.