"December 15, 2004."; Includes bibliographical references (p. 146-147).; Final report;; Performed by University of North Carolina at Charlotte Dept. of Civil Engineering under NCDOT Project no. 2002-12.
Annual; Authors: Barbara M. Efird, Barbara S. Wiggins, 1999/2000-; Vols. for 2002/2003 issued in 2 parts: Agency and community college version and School version; vols. for 2003/2004- issued in 2 parts: Adult edition and Youth edition.