000 00255nam a2200109Ia 4500
008 220201s1987 xx 000 0 eng d
100 _aNARSING DEO
245 0 _aGRAPH THEORY
260 _aU S
_bPRENTICE HALL OF INDIA
_c1987
300 _a478
942 _2ddc
999 _c90720
_d90720