000 00273nam a2200109Ia 4500
008 230515s9999||||xx |||||||||||||| ||und||
100 _aMcgrath Susan
_935092
245 0 _aFun With Physics
260 _bNational Geographic Society
_c1986
300 _a104
942 _cBK
_pCL
999 _c169468
_d169468