000 00272nam a2200109Ia 4500
008 220714s9999 xx 000 0 und d
020 _a978 0778733430
082 _aJNF 508 KALM
100 _aBOBBIE KALMAN
_9130228
245 0 _aWHAT ARE NATURAL STRUCTURES?
942 _cBK
_y561
_zJohn Tresidder
999 _c682828
_d682827