edited by Jack C. Richards and David Nunan. edited by C. E. Richards and A. C. Lynch. edited by Frank J. Berry and David J. Vaughan. edited by David T. Dennis and David H. Turpin. edited by R.H. Pritchard and I.B. Holland. edited by John H. Williams and David A. Fisher. edited by G. Alexits and P. Turan. edited by C. Chagas and B. Pullman. edited by Douglas Gairdner and David Hull. edited by G. Cochard and P. Kessler.