000 00249nam a2200109Ia 4500
008 220201s1989 xx 000 0 eng d
100 _aDEO N
245 0 _aGRAPH THEORY
260 _aU S
_bPRENTICE HALL OF INDIA
_c1989
300 _a478
942 _2ddc
999 _c90785
_d90785