APA (7th ed.) Citation

Mackie, A. M. (1975). Instructions to drivers to maintain safe spacings between following vehicles. Transport and Road Research Laboratory.

Chicago Style (17th ed.) Citation

Mackie, A. M. Instructions to Drivers to Maintain Safe Spacings Between Following Vehicles. Crowthorne, Berkshire, [England]: Transport and Road Research Laboratory, 1975.

MLA (9th ed.) Citation

Mackie, A. M. Instructions to Drivers to Maintain Safe Spacings Between Following Vehicles. Transport and Road Research Laboratory, 1975.