Censorship

Dr. N. COLLEY and W. GARRARD, Censorship in the Royal Air Force 1918 to 1965. Chavril Press, 1993. 76pp.

Charles R. ENTWISTLE, Undercover Addresses of World War II, 3rd edition. Chavril Press, 2006. 48pp.

Dr M. H. GOULD, British Naval Post and Censor Marks of the First World War. The Forces Postal History Society, 1984. 135pp.

— British Naval Post and Censor Marks of the First World War: Cumulative 2nd Supplement. The Forces Postal History Society, 2003. 44pp.

Graham MARK, British Censorship of Civil Mails during World War I, 1914‑1919. Bristol: Stuart Rossiter Trust Fund, 2000. 288pp.

— Prisoners of War in British Hands During World War I: A study of their history, the camps and their mails. Postal History Society, 2007. 258pp.

— British Censorship of Civil Mails during World War I, 1914‑1919, Second (Cumulative) Supplement. 24pp.