Research accomplishments for wood transportation structures based on a national research needs assessment [microform] / Michael A. Ritter, Sheila Rimel Duwadl ; in cooperation with the United States Department of Transportation, Federal Highway Administration (General technical report FPL ; GTR-105)
Research accomplishments for wood transportation structures based on a national research needs assessment [microform] / Michael A. Ritter, Sheila Rimel Duwadl ; in cooperation with the United States Department of Transportation, Federal Highway Administration