Operating costs of 1675 automobiles submitted by individual Iowa owners and by various State highway departments; average costs determined for 10 classes of cars for annual mileages of 3000 to 25, 000 mi; estimates for car representing composite of 1930 Iowa registration; market value depreciation, average life, and average age.
Automobile operating cost and mileage studies
Iowa State College Agriculture Mechanic Arts -- Off Publ
1931
52 pages
Article (Journal)
English
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