APA
Transport and Road Research Laboratory, TRRL Report 87.15 11.522/7259, .Study of the improvements and additions to be made to the procedure for the official approval of vehicle noise level. Crowthorne: Transport and Road Research Laboratory.
Chicago
Transport and Road Research Laboratory, TRRL Report 87.15 11.522/7259, .Study of the improvements and additions to be made to the procedure for the official approval of vehicle noise level. Crowthorne: Transport and Road Research Laboratory.
Harvard
Transport and Road Research Laboratory, TRRL Report 87.15 11.522/7259, .Study of the improvements and additions to be made to the procedure for the official approval of vehicle noise level. Crowthorne: Transport and Road Research Laboratory.
MLA
Transport and Road Research Laboratory, TRRL Report 87.15 11.522/7259, .Crowthorne: Transport and Road Research Laboratory. .