edited by John G. Neuman and Robert Martinsons. edited by John Noye and Robert May. edited by John W. Morgan and Hyman Bass. edited by R. Kalvoda and Roger Parsons. edited by Joel F. Liebman and Arthur Greenberg. edited by Alan L. Pearlman, Robert C. Collins. edited by John J. Bergan and James S. T. Yao. edited by Richard Bellman and Robert Kalaba. edited by A. H. Rose and J. F. Wilkinson. edited by Irwin Unger and Robert R. Tomes.