000 00275nam a2200121Ia 4500
008 211209s1973 xx 000 0 und d
041 _aeng
082 _a665.7 N73 BOO/NOR
100 _aBOOTH
245 _aINDUSTRIAL GASES
260 _bPERGAMON PRESS
_c1973
300 _a124
999 _c20066
_d20066