edited by G. S. Landsberg ; translated from Russian by Natalia Wadhwa. edited by G. S. Landsberg ; translated from the Russian by A. Troitsky. edited by G.S. Landsberg ; translated from the Russian by A. Troitsky. edited by N. G. Basov ; translated from Russian by Alan Mason. edited by N. G. Basov ; translated from Russian by Donald H. McNeill. edited by N. G. Basov ; translated from Russian by J. George Adashko. edited by G. V. Samsonov ; translated from Russian by Robert K. Johnston. edited by N. G. Basov ; translated from Russian by Albin Tybulewicz. edited by N. G. Basov ; translated from Russian by R. C. Hutchison. edited by N. G. Basov. ; translated from the Russian by P. S. Ivanov.