TRL Library Services. (1998). Junction and roundabout design (1990-1997). Library Services, TRL Limited.
Chicago Style (17th ed.) CitationTRL Library Services. Junction and Roundabout Design (1990-1997). Crowthorne, Berkshire: Library Services, TRL Limited, 1998.
MLA (9th ed.) CitationTRL Library Services. Junction and Roundabout Design (1990-1997). Library Services, TRL Limited, 1998.
Warning: These citations may not always be 100% accurate.