APA-referens

Hothersall, D. C., & Salter, R. J. (1977). Transport and the Environment. Crosby Lockwood Staples.

Chicago-stil citat

Hothersall, David. C., och Richard. J. Salter. Transport and the Environment. London: Crosby Lockwood Staples, 1977.

MLA-referens

Hothersall, David. C., och Richard. J. Salter. Transport and the Environment. Crosby Lockwood Staples, 1977.