"July 1968." " ... one of several bridge studies to be conducted as part of the Iowa Toll Bridge Program"--P. i. Study authorized by the Iowa State Highway Commission.
OCLC:
(OCoLC)54382509
Locations:
IAOX771 -- State Library of Iowa (Des Moines)
E7OX522 -- State Historical Society of Iowa Library (Des Moines)
This resource is supported by the Institute of Museum and Library Services under the provisions of the Library Services and Technology Act as administered by State Library of Iowa.