000 00253nam a2200109Ia 4500
008 231212s1980 xx 000 0 und d
041 _aeng
082 _a621.31
100 _aStepaneko I.P.
245 _aFundamental of
260 _aMascow
_bMir Pub
_c1980
999 _c958440
_d958440