edited by C. E. Richards and A. C. Lynch. edited by Jack C. Richards and David Nunan. edited by R. G. Edwards and J. F. Porter. edited by R.H. Pritchard and I.B. Holland. edited by G. Cochard and P. Kessler. edited by James L. McCall and P. M. French. edited by A.S. Strub and P. Ungemach. edited by J. L. Alonso and R. Tarrach. edited by M. R. Droop and H. W. Jannasch. edited by R.W. Frei and K. Zech.