Rev. and updated.; " ... prepared originally by the Mine and Quarry Bureau of the North Carolina Department of Labor. Harold D. Megredy and Douglas K. Wortham developed the original guide. This edition has been revised and updated as of August...
"Funded by a grant from the U.S. Fish and Wildlife Service."; Title from title page screen (viewed on May 17, 2012).; Includes bibliographical references (p. 68-71).
[Rev.]; "This edition ... is largely based on an earlier edition written by the L.A. Weaver Co. of Raleigh, N.C."--P. [2] of cover.; "Revised 5/09"--P. [2] of cover.; Includes bibliographical references (p. 27).
[Rev.]; "This edition ... is largely based on a [sic] earlier edition written by the L.A. Weaver Company"--P. [2] of cover.; "Printed 2/98"--P. [2] of cover.; "Sydney Cheryl Sutton, editor."; Includes bibliographical references (p. 53).
