Droege, P. (2009). 100% renewable: Energy autonomy in action. Earthscan.
Citazione stile Chigago Style (17a edizione)Droege, Peter. 100% Renewable: Energy Autonomy in Action. London: Earthscan, 2009.
Citatione MLA (9a ed.)Droege, Peter. 100% Renewable: Energy Autonomy in Action. Earthscan, 2009.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.