TY  - BOOK
AU  - Krypton,Constantine
AU  - Karpovich,Michael M.
TI  - The northern sea route: its place in Russian economic history before 1917
T2  - Studies on the U.S.S.R
PY  - 1953///
CY  - New York
PB  - Research Program on the U.S.S.R.
N1  - Бібліогр. : c. 157-189, Index
ER  -