Παραπομπή APA

Walters, A. A. (1968). The Economics of road user charges. Baltimore: International Bank for Reconstruction and development.

Παραπομπή Chicago Style

Walters, A. A. The Economics of Road User Charges. Baltimore: International Bank for Reconstruction and development, 1968.

Παραπομπή MLA

Walters, A. A. The Economics of Road User Charges. Baltimore: International Bank for Reconstruction and development, 1968.

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