00571    a2200181   4500001000700000003000400007005001700011008004100028082001600069100002400085245005300109260004000162300001000202690004100212942001200253999001500265952010900280131772OSt20210917103917.0                                          a511.6bK52P1 aKheyfits, Alexander1 aA primer in combinatoricscby Alexander Kheyfits  aNew jerseybWalter de gruyterc2010  a323p.  aCombinatorial analysis; Graph theory  2ddccBK  c6171d6171  00102ddc40708TXBaCURAJbCURAJd2012-06-08eMTHg39.95o511.6 K52Pp7852r2024-11-21w2020-09-02yBK