Annual; At head of title: North Carolina, <2001>-2005; North Carolina Department of Revenue, Tax Administration, 2006; North Carolina Department of Revenue, 2007-; Issued by: Office of the Assistant Secretary for Tax Administration, 2009-
[Rev.]; "This edition ... is largely based on a [sic] earlier edition written by the L.A. Weaver Company"--P.  of cover.; "Printed 2/98"--P.  of cover.; "Sydney Cheryl Sutton, editor."; Includes bibliographical references (p. 53).
"The report ... represents a summary of the field investigations and laboratory research carried on by the Tennessee Valley Authority and the United States Bureau of Mines over a period of several years"--Foreword.