APA-viite

Leff, E. (2007). Wakefulness of Happiness. Imaginaries to Rethink Education in the Era of Environmental Crisis.

Chicago-tyylinen lähdeviittaus

Leff, Enrique. Wakefulness of Happiness. Imaginaries to Rethink Education in the Era of Environmental Crisis. 2007.

MLA-viite

Leff, Enrique. Wakefulness of Happiness. Imaginaries to Rethink Education in the Era of Environmental Crisis. 2007.

Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.