Turner, R. P. NBC's urban minibuses : a review and financial appraisal / by R.P. Turner, P.R. White. - London : Transport & Road Research Laboratory, 1981. - 99 p. - Contractor report (Transport and Road Research Laboratory) ; no. 42 . LCCN: 10250075 Subjects--Topical Terms: Buses--Economic aspects.--Great Britain