000 00236nam a2200097Ia 4500
008 220905s9999 xx 000 0 und d
020 _a9781580134347
100 _aWalker SM
_9171891
245 0 _aInclined planes and wedges
942 _cBK
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_xJohn Tresidder
_y561
_zJohn Tresidder
999 _c730237
_d730236