000 00294nam a2200121Ia 4500
008 160710s1950 xx 000 0 und d
082 _a914.7 B 48 N
100 _aBERG,L.S.
245 _aNATURAL REGIONS OF THE U.S.S.R.
260 _bTHE MACMILLAN CO.
_c1950
300 _a436
942 _2ddc
_cB
999 _c11312
_d11312