Παραπομπή APA

Fotheringham, S. A., & O'Kelly, M. E. (1989). Spatial interaction models: Formulations and applications. Dordrecht ; Boston: Kluwer Academic Publishers.

Παραπομπή Chicago Style

Fotheringham, Stewart A., and Morton E. O'Kelly. Spatial Interaction Models: Formulations and Applications. Dordrecht ; Boston: Kluwer Academic Publishers, 1989.

Παραπομπή MLA

Fotheringham, Stewart A., and Morton E. O'Kelly. Spatial Interaction Models: Formulations and Applications. Dordrecht ; Boston: Kluwer Academic Publishers, 1989.

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