[Thesis] 'The social definition of British railways since 1865: with special reference to those of England' / D.C.H. Watts. 1999. [Ph.D. in the Faculty of Social Sciences, Dept. of Geography, University of Bristol. xii + 459p. Includes colour photos (43) of railway advertising posters] The social definition of British railways since 1865: with special reference to those of England