"December 15, 2010."; Includes bibliographical references (p. 100-104).; Final report;; Performed by Department of Civil, Construction, & Environmental Engineering, NCSU, sponsored by NC Department of Transportation, Research and Analysis Group
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.