000 00286nam a2200109 a 4500
005 20140414131959.0
008 110214s19uu xx 00 eng d
050 _aTR 372.6
_bN53 2004
100 _aNickelsen, LeAnn
245 _aMain idea and sumamrizing :
_bGrades 4-8.
999 _c113028
_d113028