APA (7th ed.) Citation

TRL Library Services. (2001). Variable message signs update (1999-2001). TRL Library Services.

Chicago Style (17th ed.) Citation

TRL Library Services. Variable Message Signs Update (1999-2001). Crowthorne, Berkshire: TRL Library Services, 2001.

MLA (9th ed.) Citation

TRL Library Services. Variable Message Signs Update (1999-2001). TRL Library Services, 2001.

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