by A. I. M. Keulemans ; edited by C. G. Verver. by I. M. Pulkina edited by P. S. Kuznetsov. by R. D. Tiwari ; edited by C. N. Vakil. by J. H. van der Have and C. G. Verver. by A. I. Sviridenok...[et al] ; edited by V. A. Belyi. by F. M. Becket ...[et al.] ; edited by C. H. Mathewson.