00327nam a2200145Ia 4500 9780521458979 511.5 BIG/A Biggs, Norman Algebraic graph theory 2ND ED. Cambridge University Press New York 2001 205p Algebra BK 5738 5738 0 0 0 0 MAT GBCTL GBCTL F17 2022-01-04 511.5 BIG/A 56835 BK