Traffic law enforcement in the Northumbria Police area /
Forsyth, Elaine.
Silcock, D. T.
University of Newcastle upon Tyne.Transport Operations Research Group.
Newcastle upon Tyne : University of Newcastle upon Tyne, Transport Operations Research Group,
[1987]
"July 1987."
Bibliography: p. 45-46.
Traffic police
Traffic police
Law enforcement
Law enforcement