Standard and tentative methods of sampling and testing highway materials : recommended by the Second Conference of State Highway Testing Engineers and Chemists, Washington, , Feb 23-27, 1920 . TON, D. C. AT 25 CENTS PER COPYstandardtentativ949unit. 4

---

Size: 1695px × 1474px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1900, bookdecade1920, booksubjectroadmat, bookyear1921