by V. V. Penkovskii. [Translated by Scripta Technica inc., Washington, D. C.] [by] J. Bass ; translated by Scripta Technica, Inc. bu Veniamin G. Levich ;translated by Scripta Technica, inc. Arnold Kaufmann, Translated by Scripta Technica, Inc. by A.V. Skorokhod ; translated from the Russian by Scripta Technica, Inc. Translated by Scripta Technica, inc. [by] N.A. Goryunova. Edited by J.C. Anderson. Translated by Scripta Technica, inc.