(2010). Köln. Vista Point.
Tohutoru Kātū Chicago (17th ed.)Köln. Köln, Deutschland: Vista Point, 2010.
Tohutoro MLA (9th ed.)Köln. Vista Point, 2010.
Kia tūpato: Kāore pea ēnei kupu hautoa i te ōrite pū 100%.
Tohutoro APA (7th ed.)