edited by Avril D. Woodhead and Benjamin J. Barnhart ; technical editor, Katherine Vivirito. edited by J. W. Stucki and Wayne L. Banwart. edited by William J. Glynn and James G. Barnes. edited by A. Whelan and J. L. Craft. edited by Anthony D. Milner and Richard J. Martin. edited by Stephen R. Kellert and Timothy J. Farnham. editors, Harold I. Kaplan, Benjamin J. Sadock.