000 00260nam a2200109Ia 4500
008 231212s1975 xx 000 0 und d
041 _aeng
082 _a621.31042
100 _aMusakin A.
245 _aProblems in Quantative
260 _aMascow
_bMir Pub
_c1975
999 _c958480
_d958480