000 00263nam a2200109Ia 4500
100 _aNagarajan, S. & Jain, H.C.
942 _cBK
245 _aSistrans no.8
260 _aSociety for information science, New delhi
_c1987
082 _a001.64 Nag
300 _avii,267
999 _c61284
_d61284