1. Market Regulation and Firm Performance: The Case of Smoking Bans in the United Kingdom
2. AGB. 1985. “Broadcasrters Audience Research Board: The Months Veiwing Summary April 1985.” https://www.barb.co.uk/1985-04-monthly-viewing-summary/.
3. Ainsworth, Peter. 2006. The Origin of Snooker: The Neville Chamberlain Story. Snooker Forum https://snooker-forum.com/TheOriginofSnooker.pdf
4. Television Listings;Anon;The Observer,1937
5. Anon. 2020. “Looking Back at Snooker History: Tobacco Sponsorships.” Snooker Shorts March 25. https://www.snookershorts.com/shorts/looking-back-at-snooker-history-tobacco-sponsorships.