Vols. for 1924-Apr. 1943 published by the North Carolina Historical Commission; July 1943-spring 1972 by the State Dept. of Archives and History; summer 1972- by the Office of Archives and History; by the Division of Archives and History.
"October 2009."; Includes bibliographical references.; Final report;; Performed by Department of Civil, Construction, & Environmental Engineering, NCSU, sponsored by NC Department of Transportation, Research and Analysis Group