edited by H.A. David and H.T. David. edited by E. M. Bridges and D. A. Davidson. edited by D. Parkinson and J. S. Waid. edited by Eric Reid and J.P. Leppard. edited by Donald S. Davies and John L. Reid. edited by S.I.Davidson and F.T.Fraunfelder. edited by David F. Bradford. edited by David I. Raitt. edited by David L. Strider. edited by Robert L. Davidson and Marshall Sittig.