Clark, W. E. (1982). Traffic management and collision investigation. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)Clark, Warren E. Traffic Management and Collision Investigation. Englewood Cliffs, N.J: Prentice-Hall, 1982.
Lua MLA (9ú heag.)Clark, Warren E. Traffic Management and Collision Investigation. Prentice-Hall, 1982.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.