00823nam0-22003011i-450-9900025678504033210883851172000256785FED01000256785(Aleph)000256785FED0100025678520000920d1978----km-y0itay50------baENGStudies in combinatoricsG. Rota.s.l.The Mathematical Association of America1978.xi, 255 p.20 cmStudies in mathematics17Teoria dei grafi, Combinatorica511Rota,G.339951ITUNINARICAUNIMARCBK990002567850403321MXXII-A-353011MASMASStudies in combinatorics436550UNINAING01