U. S. Army Engineer District Rock Island. Very Good-. 1975. Hardcover. Exlibrary usual markings. Some cover wear. ; 171 pages . U. S. Army Engineer District, Rock Island hardcover
American Concrete Institute. Very Good-. 1973. Hardcover. Exlibrary usual markings. Rebound. Some cover stains. ; 438 pages . American Concrete Institute hardcover