APA-referens (7:e uppl.)

ebrary, Inc, Leal Filho, W., & Gottwald, J. (2012). Educational and technological approaches to renewable energy. Peter Lang.

Chicago-referens (17:e uppl.)

ebrary, Inc, Walter Leal Filho, och Julia Gottwald. Educational and Technological Approaches to Renewable Energy. Frankfurt am Main: Peter Lang, 2012.

MLA-referens (9:e uppl.)

ebrary, Inc, et al. Educational and Technological Approaches to Renewable Energy. Peter Lang, 2012.