00319nam a2200121Ia 4500 211209s9999 xx 000 0 und d 9780070681880 eng 511 ROS ROSEN DISCRETE MATHEMATICS AND ITS APPLICATIONS WITH COMBINATORICS AND GRAPH THEORY MGH 0 0 0 0 RIT RIT IS-U2 2021-12-31 7 511 ROS 79742 2025-12-06 10:19:09 2025-11-21 2021-12-31 BK 79742 79742