000 00287nam a2200109Ia 4500
008 190711s9999 xx 000 0 und d
082 _a603 M147
245 0 _aMcGRAW-HILL ENCYCLOPEDIA OF SCIENCE AND TECHNOLOGY
250 _a15
260 _aNEW YORK
_bMcGraw-Hill
_c1977
942 _cBK
_2DDC
999 _c10115
_d10115