Traffic speed trends.

  • Publisher: Federal Works Agency, Public Roads Administration
  • Print ISSN:
  • Electronic ISSN:
  • OCLC Number: 26324292
  • Subject: Automobiles United States Speed Statistics Periodicals.
  • Subject code:
  • Publication history: -1975.

Print Holdings

Archiving Institution Program Holdings Description Retention
HathiTrust (HATHI) HTDL 1949; 1947-1975; 1976 permanent