APA-referens (7:e uppl.)

Union of European academies for science applied to agriculture, food and nature, Hera, C., Hoffmann, V., & Rivza, B. (2008). Renewable energy recources, production and technologies.

Chicago-referens (17:e uppl.)

Union of European academies for science applied to agriculture, food and nature, Cristian Hera, Volker Hoffmann, och Baiba Rivza. Renewable Energy Recources, Production and Technologies. 2008.

MLA-referens (9:e uppl.)

Union of European academies for science applied to agriculture, food and nature, et al. Renewable Energy Recources, Production and Technologies. 2008.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.