@book{stanley:1999:ec2,
    author = {Stanley, Richard P.},
     title = {Enumerative Combinatorics. {V}ol. 2},
 publisher = {Cambridge University Press},
   address = {Cambridge},
      year = {1999},
     pages = {xii+581},
      isbn = {0-521-56069-1},
   mrclass = {05A15 (05-02 05E05 05E10 68R05)},
  mrnumber = {MR1676282 (2000k:05026)},
mrreviewer = {Ira Gessel},
     zblno = {0928.05001}}