Ranasinghe, P. C. H. 1939- Private bus transport in Sri Lanka : it's performance, productivity, and manpower / English. P.C.H. Ranasinghe ; editor, J. Diandas. - Colombo : Friedrich-Ebert-Stiftung, 1988. - vi, 129 p. : 22 cm. Subjects--Topical Terms: Bus lines--Sri Lanka. Dewey Class. No.: 388.322 / RAN