00342nam a2200133Ia 4500008004100000020001500041041001200056082001100068100001600079245005400095260003200149300000800181650001900189221030s9999    xx            000 0 und d  a8131804520  aEnglish  a105.23  aS. B. Gupta 0aDiscrete Mathematics & Structurescby S. B. Gupta  bLaxmi Pub.aNew Delhic2009  a373  aBE Mathematics