000 00337nam a2200145Ia 4500
020 _a0000000000000
082 _b2447
_a500
100 _a"Hewaisentt Lakshami"
245 0 _aProblem Solving
260 _bNicholas Book
_aLondon
_c2005
300 _a78
944 _cBK
999 _c702665
_d702665