000 00260nam a2200097Ia 4500
020 _a9780070035751
100 _aBALAKRISHNAN, V.K
245 _aTHEORY PROBLEMS OF COMBINATORICS INCLUDING CONCEPTS OF GRAPHIS THEORY
260 _aNEW DELHI
_b MGH
_c1995
942 _cBK
999 _c1846
_d1846