Northcott, R. (2005). How's the weather: Activity book. Oxford University Press.
Chicago-referens (17:e uppl.)Northcott, Richard. How's the Weather: Activity Book. Oxford: Oxford University Press, 2005.
MLA-referens (8:e uppl.)Northcott, Richard. How's the Weather: Activity Book. Oxford University Press, 2005.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.