Railway Philately
GOODBODY, A. M. Introduction and Guide to the Travelling Post Offices of Great Britain, An. Leicester: The Railway Philatelic Group, 1977. 16 pp.--- Introduction and Guide to the Travelling Post Offices of Great Britain, An. 2nd edition. Leicester: The Railway Philatelic Group, 1983. 16 pp.
JACKSON, H. T. Railway Letter Posts of Great Britain, The. The Railway Philatelic Group, 1968. 50 pp.
NATIONAL POSTAL MUSEUM. Railways and the Post.
RELBMAR (psuedonymn). Alnis Guide to Railway Poster Stamps 1935 to 1936, The. York: Glass Slipper, 1986. 27 pp.
STUBBS, R. M. & G. P. ROBERTS. T.P.O. Postmarks of Great Britain 1962-1990. East Twickenham, Middlesex: The T.P.O. & Seapost Society, 1991. 73 pp.
WARD, C. W. English T.P.O.'s, Their History and Postmarks. Croydon: C. W. Ward, 1948. 106 pp.
--- Irish T.P.O.'s, Their History and Postmarks. Cheltenham, R. C. Alcock Ltd, 1938. 16 pp.
--- Scottish Travelling Post Offices Their History and Postmarks - Notes & Artwork. 11 pp. R
WILSON, H. S. T.P.O. A History of the Travelling Post Offices of Great Britain. Part 2 - England South of the Midland T.P.O. The Railway Philatelic Group, 1975. 76 pp.
--- T.P.O. A History of the Travelling Post Offices of Great Britain. Part 1 - England "The Specials" & Assoicated T.P.O.s. Revised edition. Leicester: The Railway Philatelic Group, 1977. 76 pp.
--- T.P.O. A History of the Travelling Post Offices of Great Britain. Part 3 - Scotland and Ireland. Leicester: The Railway Philatelic Group, 1977. 78 pp.