APA
Transport and Road Research Laboratory, Overseas road note 6, . (1988). A guide to geometric design. Crowthorne: Transport and Road Research Laboratory.
Chicago
Transport and Road Research Laboratory, Overseas road note 6, . 1988. A guide to geometric design. Crowthorne: Transport and Road Research Laboratory.
Harvard
Transport and Road Research Laboratory, Overseas road note 6, . (1988). A guide to geometric design. Crowthorne: Transport and Road Research Laboratory.
MLA
Transport and Road Research Laboratory, Overseas road note 6, . A guide to geometric design. Crowthorne: Transport and Road Research Laboratory. 1988.