000 00337nam a2200121Ia 4500
008 180710s9999 xx 000 0 und d
020 _a30998
082 _a509.47
_bSCI
245 _aSCIENCE in the USSR: to the 50th anniversary of the formation fo the union of So
260 _aMoscow
_bProgress pub.
_c0
300 _a364 p.
942 _cS
999 _c77911
_d77911