000 00445nam a22001697a 4500
005 20230617163724.0
008 230617b |||||||| |||| 00| 0 eng d
020 _a0045100365
041 _aeng
082 _a510
_bBIR
100 _aBirtwistle,Claude
245 _aMathematical Puzzles And Perplexities
_cby Claude Birtwistle
260 _aLondon
_bGeorge Allen & Unwin Ltd
_c1971
300 _a202p.
650 _aMathematics
942 _cBK
999 _c8757
_d8757