Street traffic, city of Detroit, 1936-1937. Prepared and published by and under the direction of Michigan State highway department, Murray D. Van Wagoner, state highway commissioner. In cooperation with the Detroit Police department, Heinrich A. Pickert, commissioner. And the Works progress administration, Louis M. Nims, state administrator. - [Lansing, Franklin De Kleine company, state printer, cc1937] U. S. Work projects administration. Michigan; Detroit Police dept; Michigan. State highway dept