U.S. 40 : cross section of the United States of America /

Eitemau Tebyg

• Report on his investigation of road problems in the United States of America and Canada in 1937 /
  gan: McCormack, W. T. B.
  Cyhoeddwyd: (1937)
• Violence in the U.S. /
  Cyhoeddwyd: (1974)
• Effective administration in state-city highway activity : criteria of sound administration and a policy on state-city relationships /
  gan: Hebden, Norman
  Cyhoeddwyd: (1951)
• Highway practice in the United States of America : history, administration, finance, systems and standards, location and design, construction and maintenance.
  Cyhoeddwyd: (1949)
• The official good roads year book of the United States /
  Cyhoeddwyd: (1915)