000 00201 a2200097 4500
001 5924
100 _aHall,HS
245 _aelementary Trigonometry
260 _a
_bMcGraw Hill
_c
090 _c4835
_d4835
942 _aNUST-CAE
_cM
_c31195
999 _c240997
_d240997