Bell, M. G. H. (1998). Transportation networks: Recent methodological advances. Elsevier Science Ltd.
Cita Chicago (17th ed.)Bell, Michael G. H. Transportation Networks: Recent Methodological Advances. Oxford: Elsevier Science Ltd, 1998.
Cita MLA (9th ed.)Bell, Michael G. H. Transportation Networks: Recent Methodological Advances. Elsevier Science Ltd, 1998.
Atenció: Aquestes cites poden no estar 100% correctes.