00404nam a2200121Ia 4500008004100000082001700041100001700058245005500075260004700130300002200177440005700199700002600256260828b        |||||||| |||| 00| 0 eng d  a512bB592.PG  aBiggs, N. L.  aPermutation groups and combinatorial structuresb/  aLondon:bCambridge University Press,c1979  aviii, 140p. Index  aLondon Mathematical Society lecture note series ; 33  aWhite, A. T.eauthor.