00656nam a2200193 a 4500 1/6887 880428s1988 nyua 00010 eng 0716719789 7184 DLC GR-PeUP 793.7'4 SH Shasha, Dennis Elliott. The puzzling adventures of Dr. Ecco / Dennis Shasha. New York : W.H. Freeman, 1988. xiii, 183 σ. : εικ. ; 21 εκ. "Recreational mathematics"--Cover p. [4]. Mathematical recreations. Puzzling adventures of Doctor Ecco. INST UNIPILB MAIN 20040709 793.7'4 SH 00122511 00122511 LOAN 0 1