by Edgar M. Horwood and Ronald R. Boyce ; with the assistance of Lillian L. Randolph and Donald F. Rieg ; appendix on tax implications by Leonard D. GoldbergPublished in co-operation with the Bureau of Public Roads of the Department of Commerce and the Washington State Highway Commission [by] University of Washington Press1959
Hulse WagnerCenter for Research in Business, the University of Kansas for the State Highway Commission of Kansas, Highway Planning Dept. in cooperation with the U.S. Dept. of Commerce, Bureau of Public Roads[1959?]