Παραπομπή APA

Roth, G. J. (1966). A self-financing road system. London: The Institute of Economic Affairs.

Παραπομπή Chicago Style

Roth, Gabriel Josheph. A Self-financing Road System. London: The Institute of Economic Affairs, 1966.

Παραπομπή MLA

Roth, Gabriel Josheph. A Self-financing Road System. London: The Institute of Economic Affairs, 1966.

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