000 00261nam a22001097a 4500
020 _a9781466504998
082 _a511.1
_bBEL.D
100 _aSarah-Marie Belcastro
245 _aDiscreat mathematics with ducks
260 _aLondon
_bCRC press
_c2012
942 _cBK
999 _c202522
_d202522