APA-viite

Rupp, R. (2006). Four elements: Water, air, fire, earth. Profile books.

Chicago-tyylinen lähdeviittaus

Rupp, Rebecca. Four Elements: Water, Air, Fire, Earth. London: Profile books, 2006.

MLA-viite

Rupp, Rebecca. Four Elements: Water, Air, Fire, Earth. Profile books, 2006.