000 00298nam a2200121Ia 4500
100 _aNatrajan, V & Guna sekaran, S.P
942 _cBK
245 _aScaling techniques : What Why and how
260 _aNew Delhi
_bA.I.U
_c1986
082 _a371.27
_bNat/Kul
300 _a(20),216
546 _aEnglish
999 _c332324
_d332324
041 _aeng