Cita APA (7a ed.)

Harker, P. T. (1987). Predicting intercity freight flows (1a ed.). Vnu Science Press.

Cita Chicago Style (17a ed.)

Harker, P. T. Predicting Intercity Freight Flows. 1a ed. Utrecht: Vnu Science Press, 1987.

Cita MLA (9a ed.)

Harker, P. T. Predicting Intercity Freight Flows. 1a ed. Vnu Science Press, 1987.