Παραπομπή APA

National Cooperative Highway Research Program-Legal Research Digest. Washington: National Research Council, Transportation Research Board.

Παραπομπή Chicago Style

National Cooperative Highway Research Program-Legal Research Digest. Washington: National Research Council, Transportation Research Board.

Παραπομπή MLA

National Cooperative Highway Research Program-Legal Research Digest. Washington: National Research Council, Transportation Research Board.

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