APA
Transportation Research Record 1142, . (1987). Urban signal systems and transportation system management. Washington DC: Transportation Research Record 1142.
Chicago
Transportation Research Record 1142, . 1987. Urban signal systems and transportation system management. Washington DC: Transportation Research Record 1142.
Harvard
Transportation Research Record 1142, . (1987). Urban signal systems and transportation system management. Washington DC: Transportation Research Record 1142.
MLA
Transportation Research Record 1142, . Urban signal systems and transportation system management. Washington DC: Transportation Research Record 1142. 1987.