APA (7th ed.) Citation

Plumbe, A. J., & Hill. P. G. (1981). Transport policies in Sri Lanka and some consequences. Transport and Road Research Laboratory.

Chicago Style (17th ed.) Citation

Plumbe, A. J., and Hill. P. G. Transport Policies in Sri Lanka and Some Consequences. Crowthorne, Berkshire: Transport and Road Research Laboratory, 1981.

MLA (9th ed.) Citation

Plumbe, A. J., and Hill. P. G. Transport Policies in Sri Lanka and Some Consequences. Transport and Road Research Laboratory, 1981.