• publisher: Washington, D.C. : U.S. Dept. of Agriculture
  • creator: United States. Bureau of Public Roads Conference of State Highway Testing Engineers and Chemists (1st : 1917 : Washington, D.C.)
  • contributor: United States. Bureau of Public Roads. Conference of State Highway Testing Engineers and Chemists (1st : 1917 : Washington, D.C.)
  • Keyword: Road materials.
  • years: 1917.
  • pages: 56 p. :
  • notes: Caption title.
  • download: pdf file