00725nam a2200193 a 4500 1/8327 721122s1971 enka b 00000 eng 0045100365 8645 DLC GR-PeUP 793.7'4 BI Birtwistle, Claude. Mathematical puzzles and perplexities: how to make the most of them / Claude Birtwistle. London : Allen and Unwin, 1971. 202 σ. : εικ.; 23 εκ. Περιέχει βιβλιογραφία. Mathematical recreations. INST UNIPILB MAIN 20040709 793.7'4 BI 00112250 00112250 LOAN 0 1 INST UNIPILB MAIN 20040709 793.7'4 BI 00126826 00126826 LOAN 0 2