edited by Rom Harre and Roger Lamb. edited by Roy M. Harrison and Roger Perry. edited by Fritz Wagner and Roger Caves. edited by R. Kalvoda and Roger Parsons. edited by Roger Perry and Robert J. Young. edited by Michael D. Lumb. edited by Robert A. Gorman. edited by Robert E. Hermann. edited by Robert Pecora. edited by Robert S. Harris and Endel Karmas.