Rjabcikov, Evgenij Ivanovic. Russians in space / [electronic resource] / By Evgeny Riabchikov (Evgenij Ivanovic Rjabcikov). Ed. by Nikolai P. Kamanin. Transl. by Guy Daniels. Prep. by the Novosti Press Agency Publishing House, Moscow.. — Garden City : : Doubleday,, 1971.. — 300 S.