Natural regions of the U.S.S.R. Translated from the Russian by Olga Adler Titelbaum. Edited by John A. Morrison and C. C. Nikiforoff. ([American Council of Learned Societies Devoted to Humanistic Studies. Russian Translation Project. Series 6])
Natural regions of the U.S.S.R. Translated from the Russian by Olga Adler Titelbaum. Edited by John A. Morrison and C. C. Nikiforoff.
([American Council of Learned Societies Devoted to Humanistic Studies. Russian Translation Project. Series 6])