Παραπομπή APA

Boyle, G. (2004). Renewable energy power for a sustainable future (2.).

Παραπομπή Chicago Style

Boyle, Godfrey. Renewable Energy Power for a Sustainable Future. 2. Newyork, Oxford, 2004.

Παραπομπή MLA

Boyle, Godfrey. Renewable Energy Power for a Sustainable Future. 2. 2004.