APA
Transportation Research Record 1141, . (1987). Pedestrian and bicycle planning with safety considerations. Washington DC: Transportation Research Record 1141.
Chicago
Transportation Research Record 1141, . 1987. Pedestrian and bicycle planning with safety considerations. Washington DC: Transportation Research Record 1141.
Harvard
Transportation Research Record 1141, . (1987). Pedestrian and bicycle planning with safety considerations. Washington DC: Transportation Research Record 1141.
MLA
Transportation Research Record 1141, . Pedestrian and bicycle planning with safety considerations. Washington DC: Transportation Research Record 1141. 1987.