[by] Phillip Cutler with the assistance of Hardy Hoover. by Irwin Unger. With the assistance of Debi Unger. by John M. Cage, with the assistance of C. J. Bashe. Irwin Unger ; with the assistance of Debi Unger. by George H. McKnight; with the assistance of Bert Emsley. by Mary K. Biagini with the assistance of Judith Hartzler. Randall E. Decker, with the assistance of Robert A. Schwegler. David Mumford with the assistance of C. Musili. prepared with the assistance of Alan Evison. William I. Salmon with the assistance of Edward L. Salmon.