North American NA-64 Yale (English Wikipedia)

Peter D Evans, "LEMB Stammkennzeichen Database", The LEMB Stammkennzeichen Database Project, archived from the original on 5 August 2014, retrieved March 31, 2014
""stamm Dx+xx" The LEMB Stammkennzeichen Database Project". luftwaffe-experten.org. Archived from the original on 8 May 2014. Retrieved 24 March 2019.
""stamm Nx+xx" The LEMB Stammkennzeichen Database Project". luftwaffe-experten.org. Archived from the original on 8 May 2014. Retrieved 5 March 2019.
"stamm Rx+xx". luftwaffe-experten.org. Archived from the original on 8 May 2014. Retrieved 5 March 2019.
"stamm Vx+xx". luftwaffe-experten.org. Archived from the original on 8 May 2014. Retrieved 5 March 2019.
"Cx+xx". luftwaffe-experten.org. Archived from the original on 1 May 2014. Retrieved 5 March 2019.
"stamm Kx+xx". luftwaffe-experten.org. Archived from the original on 8 May 2014. Retrieved 5 March 2019.
"stamm Hx+xx". luftwaffe-experten.org. Archived from the original on 8 May 2014. Retrieved 24 March 2019.
"stamm Px+xx". luftwaffe-experten.org. Archived from the original on 8 May 2014. Retrieved 5 March 2019.

ntsb.gov

"CAROL".

pimaair.org

"YALE". www.pimaair.org. Archived from the original on 24 March 2019. Retrieved 24 March 2019.

reynoldsmuseum.ca

"Aviation". Reynolds Museum. Government of Alberta. Retrieved 1 December 2019.

silverhawkauthor.com

"Harold A. Skaarup, author of Shelldrake". silverhawkauthor.com. Archived from the original on 6 March 2019. Retrieved 5 March 2019.

spitcrazy.com

"The Ernie Simmons Story." Archived 2013-09-06 at the Wayback Machine Spitfire Emporium. Retrieved: 24 December 2011.

traditions-air.fr

"EOM 82 Niger", www.traditions-air.fr (in French), retrieved September 30, 2017

warplane.com

"Aircraft Details". Canadian Warplane Heritage Museum. Retrieved 5 March 2019.
"North American Yale". Canadian Warplane Heritage Museum. Retrieved 24 March 2019.

waymarking.com

"Canada's Aviation Hall of Fame - Wetaskiwin, Alberta - Aviation Museums on Waymarking.com". www.waymarking.com. Retrieved 5 March 2019.

web.archive.org

Peter D Evans, "LEMB Stammkennzeichen Database", The LEMB Stammkennzeichen Database Project, archived from the original on 5 August 2014, retrieved March 31, 2014
""stamm Dx+xx" The LEMB Stammkennzeichen Database Project". luftwaffe-experten.org. Archived from the original on 8 May 2014. Retrieved 24 March 2019.
""stamm Nx+xx" The LEMB Stammkennzeichen Database Project". luftwaffe-experten.org. Archived from the original on 8 May 2014. Retrieved 5 March 2019.
"stamm Rx+xx". luftwaffe-experten.org. Archived from the original on 8 May 2014. Retrieved 5 March 2019.
"stamm Vx+xx". luftwaffe-experten.org. Archived from the original on 8 May 2014. Retrieved 5 March 2019.
"Cx+xx". luftwaffe-experten.org. Archived from the original on 1 May 2014. Retrieved 5 March 2019.
"stamm Kx+xx". luftwaffe-experten.org. Archived from the original on 8 May 2014. Retrieved 5 March 2019.
"stamm Hx+xx". luftwaffe-experten.org. Archived from the original on 8 May 2014. Retrieved 24 March 2019.
"stamm Px+xx". luftwaffe-experten.org. Archived from the original on 8 May 2014. Retrieved 5 March 2019.
"The Ernie Simmons Story." Archived 2013-09-06 at the Wayback Machine Spitfire Emporium. Retrieved: 24 December 2011.
"Imperial War Museum Duxford - Museums". aeroflight.co.uk. Archived from the original on 6 March 2019. Retrieved 5 March 2019.
"Harold A. Skaarup, author of Shelldrake". silverhawkauthor.com. Archived from the original on 6 March 2019. Retrieved 5 March 2019.
"YALE". www.pimaair.org. Archived from the original on 24 March 2019. Retrieved 24 March 2019.
Bomber Command Museum of Canada – North American NA-64 Yale Archived 2017-11-20 at the Wayback Machine Retrieved: 31 March 2014
"Factsheets : North American BT-14 (NA-64)". 8 May 2014. Archived from the original on 2014-05-08. Retrieved 5 March 2019.