000 00261nam a2200109Ia 4500
008 220525s9999 xx 000 0 und d
020 _a0 001953966"
082 _aJ 629.4109 KER
100 _aR KERROD
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245 4 _aTHE CHALLENGE OF SPACE
942 _cBK
_w561
_xJohn Tresidder
_y561
_zJohn Tresidder
999 _c635616
_d635615