000 00313cam a22000977a 4500
008 180718b2001 xxu||||| |||| 00| 0 eng d
100 _aPradhan, Prasanna
245 _aRNFC formula worked out with weight-distance factor and comparative study
_cby Prasanna Pradhan
260 _aNew Delhi
_bIIPA
_c2001
300 _av.p.
999 _c491950
_d491950