000 00295nam a2200121Ia 4500
003 LDD
040 _cLDD
041 _aen
245 0 _aAmerican Journal of Physics
260 _aAmerican Association of Physics Teachers
_bNew York
_c1 Jul-31 Dec,2009
362 _a77-77
_b07-Dec
942 _2ddc
_cJ
999 _c181816
_d181816