'The work was commissioned by the Transport and Road Research Laboratory of the Department of the Environment ... and was done between June 1973 and July 1974'.
Minitram in Sheffield : a report of civil engineering, planning and operational studies to examine the feasibility of a Minitram system in the centre of Sheffield ... by Robert Matthew, Johnson-Marshall and Partners. ISBN 0950426016. Published by Robert Matthew, Johnson-Marshall and Partners in 1974. Publication and catalogue information, links to buy online and reader comments.