Παρόμοια τεκμήρια

• Transit Cooperative Research Program. Research Results Digest.
• National Cooperative Transit Research and Development Program-Report
  Έκδοση: (1990)
• National Cooperative Highway Research Program-Research Results Digest.
  Έκδοση: (1969)
• National Cooperative Transit Research and Development Program Synthesis of Transit Practice
  Έκδοση: (1990)
• National Cooperative Highway Research Program-Legal Research Digest.