Gill, B. (2001); "The Big Man. Surveying Sir George Everest", in: Professional Surveyor Magazine, Vol. 21 Nr 2. Retrieved onlineArchived 10 February 2017 at the Wayback Machine 8 March 2016.
Gill, B. (2001); "The Big Man. Surveying Sir George Everest", in: Professional Surveyor Magazine, Vol. 21 Nr 2. Retrieved onlineArchived 10 February 2017 at the Wayback Machine 8 March 2016.