000 00265nam a2200109Ia 4500
008 170824s9999 xx 000 0 und d
020 _a0 309 04686 6
082 _a634 IDN
100 _aIDNRC
245 _aNEEM A TREE SOLVING PROBLEM
260 _bNATINAL ACADEMY PRESS
942 _cBK
999 _c5301
_d5301