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.
"January 2003."; Includes bibliographical references (p. 39-40).; Final report;; Performed by North Carolina State University, Dept. of Civil Engineering, and National Institute of Statistical Sciences under NCDOT Project no.