Book call no. 940.542 C6991b Collier, Basil. The Defence of the United Kingdom . London, HMSO, 1957. Index, pp 529-557.
Book call no.
940.542 H673 vol.5 Collier, Basil. Leader of the Few . The Authorised Biography of Air Chief Marshal the Lord Dowding of Bentley Priory. London, Jarrolds, 1957. On the Eve, pp 157-194.