Stanley, Richard, P
Enumerative combinatorics vol.1 - New york Cambridge university press 2008 - 325 - Cambridge studeis in mathematics; 00049 .
9780521663519
511 STA
Enumerative combinatorics vol.1 - New york Cambridge university press 2008 - 325 - Cambridge studeis in mathematics; 00049 .
9780521663519
511 STA