000			00334nam a2200133Ia 4500
001			26197
008			170722s9999 xx 000 0 und d
100			_aSereda, Ng And
245			_aDrilling of oil and gas wells tr by V V Shiffer /
260			_bMirco, , _c1977.
300			_a543 p. _c22Cms
700			_aSolovyov, Em
942			_cGEN
999			_c93975 _d93975