Tractive resistance and related characteristics of roadway surfaces
By: by T. R. Agg. An investigation conducted by the Iowa Engineering Experiment Station in cooperation with the United States Bureau of Public Roads and the Iowa Highway Commission.
Series: Bulletin 67, Engineering Experiment Station
Publisher: Iowa State College of Agriculture and Mechanic Arts
Published: 1924
Place of publication: Ames, Ia
Language: eng
Number of pages: 62
Subjects: Automobiles.; Roads.
Notes: At head of title: Iowa State College of Agriculture and Mechanic Arts. Official publication. vol. XXII, no. 36. Feb. 6, 1924.