Proceedings of the thirty-second annual meeting, Washington, DC, January 13-16, 1953/

Eitemau Tebyg

• Proceedings of the thirty-seven annual meeting, Washington, D C, January 6-10, 1958 /
  gan: National Research Council. Highway Research Board
  Cyhoeddwyd: (1958)
• Proceedings of the 39th annual meeting, Washington, DC, January 11-15, 1960/
  gan: National Research Council. Highway Research Board
  Cyhoeddwyd: (1960)
• Proceeding of the thirty-fifth annual meeting : Highway Research Board National Research Council/
  gan: National Research Council (United States). Highway Research Board, et al.
  Cyhoeddwyd: (1956)
• Highway enginering economy : report on a symposium held January 14, 1968, Washington, DC /
  gan: National Research Council. Highway Research Board
  Cyhoeddwyd: (1970)
• Annual report /
  gan: 2290 Australian Road Research Board