Παραπομπή σε μορφή APA (7η εκδ.)

European Conference of Ministers of Transport. (1998). Efficient transport for Europe: Policies for internalisation of external costs. ECMT.

Παραπομπή σε μορφή Chicago (17η εκδ.)

European Conference of Ministers of Transport. Efficient Transport for Europe: Policies for Internalisation of External Costs. France: ECMT, 1998.

Παραπομπή σε μορφή MLA (8th εκδ.)

European Conference of Ministers of Transport. Efficient Transport for Europe: Policies for Internalisation of External Costs. ECMT, 1998.