01188cam a22002771 4500 cd 33000009 DLC 20260227111146.0 800415s1931 oru 000 0 eng cd 33000009 (OCoLC)6207134 DLC NmU OCoLC DLC premarc HE630.C65 O7 University of Oregon. Bureau of Business and Economic Research. Columbia river valley traffic survey. Eugene [Ore.] The University [1931] 16 p. incl. tables, diagr. 26 cm. Its Studies in business, no. 10 University of Oregon publication. Business administration series. vol. II, no. 3. At head of title: The University of Oregon. School of business administration. Bureau of business research. Columbia River Valley Surveys. Communication and traffic Columbia River Valley. University of Oregon. Bureau of Business and Economic Research. University of Oregon studies in business ; no. 10. University of Oregon. Publication. Business administration series ; v. 2, no. 3. 18490 18490