00575cam a2200193 a 450000500170000000800410001701000140005802000260007203500250009803700130012304000080013608200080014410000260015224500690017825000120024726000440025930000330030350000450033620181228150517.0060803s2007    njua     b    001 0 eng    aENG-95644  a9788120338807c295.00  aEN-79177,   B-182220  aDBAD/PUB  aDPL  a510  aBiswal, Purna Chandra  aDiscrete mathematics and graph theory /cby Purna Chandra Biswal  a2nd ed.  aNew Delhi :bPHI Learning P. Ltd.c2009  axviii, 490p. :c24 cm. (Pbk)  aIncludes bibliography  ref. and indexes.