APA

Hurford R., Phillpotts M. & Kirby B. (1971). Accidents involving heavy goods vehicles (1970). London: Metropolitan Police. Traffic and Accident Research Branch [B.5] Report No. 6/71 [New Scotland Yard].

Chicago

Hurford RJ, Phillpotts M and Kirby BJ. 1971. Accidents involving heavy goods vehicles (1970). London: Metropolitan Police. Traffic and Accident Research Branch [B.5] Report No. 6/71 [New Scotland Yard].

Harvard

Hurford R., Phillpotts M. and Kirby B. (1971). Accidents involving heavy goods vehicles (1970). London: Metropolitan Police. Traffic and Accident Research Branch [B.5] Report No. 6/71 [New Scotland Yard].

MLA

Hurford RJ, Phillpotts M and Kirby BJ. Accidents involving heavy goods vehicles (1970). London: Metropolitan Police. Traffic and Accident Research Branch [B.5] Report No. 6/71 [New Scotland Yard]. 1971.