References
- General
- Richmond, Ray; Antonia Coffman (1997). The Simpsons: A Complete Guide to Our Favorite Family. Harper Collins Publishers. ISBN 0-06-019348-4.
- Ortved, John (2009). Simpsons Confidential: The uncensored, totally unauthorised history of the world's greatest TV show by the people that made it (UK ed.). Ebury Press. ISBN 978-0-09-192729-5.
- Specific
Read more about this topic: The Simpsons (season 6)