APA (7th ed.) Citation

TRL Library Services. (1994). Safety barriers, 1989-1994. Library Services, Transport Research Laboratory.

Chicago Style (17th ed.) Citation

TRL Library Services. Safety Barriers, 1989-1994. Crowthorne, Berkshire: Library Services, Transport Research Laboratory, 1994.

MLA (9th ed.) Citation

TRL Library Services. Safety Barriers, 1989-1994. Library Services, Transport Research Laboratory, 1994.

Warning: These citations may not always be 100% accurate.