found: Integrated transport policy, 2000:t.p. (edited by John Preston, Transport Studies Unit, Univ. of Oxford, UK)
found: RLIN, May 3, 2001(hdg.: Preston, John, 1960-; usage: John Preston)
found: British Library authority file, viewed 8 September 2014(access point: Preston, John, 1960-; Jonathan Mark Preston, born 19 April 1960)
found: Transit economics, 2008:t.p. (John M. Preston) p. 3 (Univ. of Southampton, UK)
found: University of Southampton website, viewed Sept. 29, 2014(John Preston; professor of rail transport; publications include Integrated transport policy (2000))