000 00309nam a2200121 4500
082 _a335
_bPIR.W
084 _2Colon Classification
100 _aPirogov, G
245 _aWhat is the world socialist system? /
_cG. Pirogov
260 _aMoscow :
_bProgress Publishers,
_c1987
300 _a159p.
942 _cREF
999 _c643660
_d643660