West African censorship : covering Ascension, Biafra, Cameroons, The Gambia, Gold Coast, Nigeria, St Helena, Sierra Leone, Togo and Tristan da Cunha from 1914 /
Martin, Jeremy,author.
Walton, Frank L.(Philatelist),author.
Harris, R. H. J.(Ray H. J.),author.
Includes bibliographical references (pages 177-178) and index.
Postal censor stamps
Postal service