00305nam a22001217a 4500003000400000008004100004020001500045082001800060100001600078100002500094245003300119260003100152OSt211008b           ||||| |||| 00| 0 eng d  a8170234638  a511.5bCLA/GR  aCLARK, JOHN  aHolton,Derek , Allan  aA first look at graph theory  bAllied pubishers ltdc1995