000 00247nam a2200109Ia 4500
008 220201s1997 xx 000 0 eng d
100 _aVALKENBURG, M.E.
245 0 _aNETWORK ANALYSIS
260 _aDELHI
_bPHI
_c1997
300 _a571
942 _2ddc
999 _c67207
_d67207