Williams, M. C. (1980). Tabulations of 1977 road casualties indicating risks of injury to road users in relation to vehicles involved. Transport and Road Research Laboratory.
Chicago Style (17th ed.) CitationWilliams, Marian C. Tabulations of 1977 Road Casualties Indicating Risks of Injury to Road Users in Relation to Vehicles Involved. Crowthorne, Berk: Transport and Road Research Laboratory, 1980.
MLA (9th ed.) CitationWilliams, Marian C. Tabulations of 1977 Road Casualties Indicating Risks of Injury to Road Users in Relation to Vehicles Involved. Transport and Road Research Laboratory, 1980.
Warning: These citations may not always be 100% accurate.