000 003980000a22001690004500
008 140223b1999 xxu||||| |||| 00| 0 eng d
020 _a8120311477
041 _aEng
080 _aB26 N9
082 _aB26 N9
100 _aKolman Bernard
700 _aothers
245 _aDiscrete mathematical structures
250 _a3rd edn
260 _aNew Delhi
_bPHI
_c1999
650 _aMathematics
999 _c59539
_d59539