''The Simpsons''
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5Martyn, Warren; Wood, Adrian (2000). ”Bart Gets an F” http://www.bbc.co.uk/cult/
simpsons/ episodeguide/season2/page1.shtml. BBC. Retrieved 2007-08-30.
6Martyn, Warren; Wood, Adrian (2000). ”The Simpsons Hallowe'en Special” ...