000 00507nam a2200133Ia 45e0
008 181001s1982 xx 000 0 und d
100 _aMc Graw Hill
245 0 _aMc Graw Hill Encyclopedia science Technology
260 _aNewyork
_bMcGraw Hill com.
_c1982
300 _a803
942 _2ddc
_cBK
999 _c3474
_d3474