Παραπομπή APA
International symposium on theory and practice in transport economics. (1977). The contribution of economic research to transport policy decisions: Introductory reports and summary of the discussion. London: ECMT.
Παραπομπή Chicago StyleInternational symposium on theory and practice in transport economics. The Contribution of Economic Research to Transport Policy Decisions: Introductory Reports and Summary of the Discussion. London: ECMT, 1977.
Παραπομπή MLAInternational symposium on theory and practice in transport economics. The Contribution of Economic Research to Transport Policy Decisions: Introductory Reports and Summary of the Discussion. London: ECMT, 1977.
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