general editors, John F. Rooney, Jr., Wilbur Zelinsky, and Dean R. Louder ; cartographic editor, John D. Vitek ; coordinating editor, Campbell W. Pennington : associate editors, James P. Allen [and others]
edited by Robert H. Watrel, Ryan Weichelt, Fiona M. Davidson, John Heppen, Erin H. Fouberg, J. Clark Archer, Richard L. Morrill, Fred M. Shelley, Kenneth C. Martis ; cartography by Robert H. Watrel and J. Clark Archer