Battle of Britain (Simple English Wikipedia)

Putland, Alan L. "7 September 1940." Archived 24 March 2010 at the Wayback Machine Battle of Britain Historical Society. Retrieved:12 August 2009.
Putland, Alan L. "7 September 1940 - The Aftermath." Archived 30 January 2010 at the Wayback Machine Battle of Britain Historical Society. Retrieved: 12 August 2009.
Putland, Alan L. "8 September - 9 September 1940." Archived 24 March 2010 at the Wayback Machine Battle of Britain Historical Society. Retrieved: 12 August 2009.

bbc.co.uk (Global: 8^th place; Simple English: 7^th place)

"World War II: The RCAF Overseas." Archived 2011-06-11 at the Wayback Machine airforce.forces.gc.ca, 3 April 2009. Retrieved: 6 February 2010.

"RADAR means: Radio Detection and Ranging." NASA, 14 October 20017. Retrieved: 12 September 2010.

"No 1 (R.C.A.F.) Hurricane Squadron." the-battle-of-britain.co.uk. Retrieved: 6 February 2010.

"World War II: The RCAF Overseas." Archived 2011-06-11 at the Wayback Machine airforce.forces.gc.ca, 3 April 2009. Retrieved: 6 February 2010.
"Battle of Britain RAF and FAA role of honour." Archived 2011-10-12 at the Wayback Machine raf.mod.uk. Retrieved: 14 July 2008
"Battle of Britain 1940." Archived 2008-06-03 at the Wayback Machine battleofbritain.net. Retrieved: 28 June 2010.
"Audio Clip of Churchill's speech." Archived 2010-08-28 at the Wayback Machine bbc.co.uk. Retrieved: 28 June 2010.
Putland, Alan L. "7 September 1940." Archived 24 March 2010 at the Wayback Machine Battle of Britain Historical Society. Retrieved:12 August 2009.
Putland, Alan L. "7 September 1940 - The Aftermath." Archived 30 January 2010 at the Wayback Machine Battle of Britain Historical Society. Retrieved: 12 August 2009.
Putland, Alan L. "8 September - 9 September 1940." Archived 24 March 2010 at the Wayback Machine Battle of Britain Historical Society. Retrieved: 12 August 2009.
Green, Ron and Mark Harrison. "Forgotten frontline exhibition tells how Luftwaffe fought with soldiers on Kent marshes." Archived 2011-11-25 at the Wayback Machine KentOnline, 30 September 2009. Retrieved: 21 August 2010.