Traffic on Iowa highways
By: by T. R. Agg.
Series: Bulletin 56, Engineering Experiment Station, Good Roads Sections
Publisher: Iowa State College of Agriculture and Mechanic Arts
Published: 1920
Place of publication: Ames, Ia
Language: eng
Number of pages: 14
Subjects: Roads -- Iowa.
Notes: At head of title: Official publication of Iowa State College of Agriculture and Mechanic Arts. vol. XVIII, no. 34. Jan. 21, 1920.