@book{riordan:1979:ci,
    author = {Riordan, John},
     title = {Combinatorial Identities},
      note = {Reprint of the 1968 original with corrections.},
 publisher = {Robert E. Krieger Publishing Co.},
   address = {Huntington, NY},
      year = {1979},
     pages = {xii+256},
      isbn = {0-88275-829-2},
   mrclass = {05-02 (05A19)},
  mrnumber = {MR0554488 (80k:05001)}}