TRL Library Services. (1992). Bridge maintenance (1990-1992). Transport Research Laboratory.
Chicago Style (17th ed.) CitationTRL Library Services. Bridge Maintenance (1990-1992). Crowthorne, Berkshire: Transport Research Laboratory, 1992.
MLA (9th ed.) CitationTRL Library Services. Bridge Maintenance (1990-1992). Transport Research Laboratory, 1992.
Warning: These citations may not always be 100% accurate.