000 00320nam a2200145Ia 4500
020 _a9695330244
082 _b827
_a500
100 _a"NA"
245 4 _aThe basic science
260 _bHOUSTEN EDUCATION
_aKARACHI
_c2002
300 _a91
944 _cBK
999 _c54204
_d54204