References for Herbert Turnbull
- Biography in Encyclopaedia Britannica.
http://www.britannica.com/biography/Herbert-Westren-Turnbull
Articles:
- W Ledermann, Herbert Westren Turnbull, J. London Math. Soc. 38 (1963), 123-128.
- W Ledermann, Memoir : Two Mathematical Cultures, British Society for the History Mathematics Newsletter 41 (Spring 2000), 5-10.
- W Ledermann, Private communication (2000).
- H W Turnbull, Letter to W Ledermann - 16 July 1938 (unpublished).