00345nam a2200133Ia 450000100060000000800410000602000180004704000130006508200160007824500440009426000550013830000110019354600070020421684140409s9999    xx            000 0 und d  a0-85229-375-5  cPK-LaUMT  aR 031bENC-  a1981 yearbook of science and the future  aChicago,USA:bEncyclopedia Britannica, Inc.,c1981  a445 p.  aEN