Παραπομπή APA

Hutchins, J. G. (1977). Transportation and the Enviorement. Paul Elek.

Παραπομπή Chicago Style

Hutchins, John G.B. Transportation and the Enviorement. London: Paul Elek, 1977.

Παραπομπή MLA

Hutchins, John G.B. Transportation and the Enviorement. Paul Elek, 1977.