Iowa State highway maintenance study
By: a report to the Iowa State Highway Commission and the U. S. Bureau of Public Roads, cosponsors, from their special study group.
Contributors: United States. Bureau of Public Roads.
Series: Publication (National Research Council (U.S.)) ;; 921.
Publisher: National Academy of Sciences-National Research Council
Published: 1961
Place of publication: Washington
Language: eng
Number of pages: 57
Subjects: Roads -- Iowa.
Notes: National Research Council.  Publication 921.