000 00271nam a2200121Ia 4500
100 _aI Laptev
654 _aSociology
942 _cBK
245 _aThe World of man in the world of nature
260 _aProgess Publ, Moscow
_c1979
082 _a301.3 Lap
300 _a241p
999 _c64895
_d64895