000 00305nam a2200121Ia 4500
008 211209s1977 xx 000 0 und d
041 _aeng
082 _a621.992 N77 SER/SOL
100 _aSEREDA N G
245 _aDRILLING OF OIL AND GAS WELLS
260 _aMOSCOW
_bM I R PUBLISHERS
_c1977
300 _a544
999 _c20228
_d20228