00390nam a2200121Ia 4500008004100000082001900041100001600060245005400076260005000130300002000180490004100200700002700241260313b        |||||||| |||| 00| 0 eng d  a518.1bP132.IC  aPage, I. S.  aAn introduction to computational combinatoricsb/  aCambridge:bCambridge University Press,c1979  avi, 218p. Index  aCambridge Computer Science textsv 9  aWilson, L. B.eauthor.